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1. (Re) thinking Towards a Sustainable Analytical Chemistry: Part I: Inorganic Elemental Sample Treatment, Part II: Alternative Solvents and Extraction Techniques

Author:
Ana P.R. Santana; Patricia de Andrade Nascimento; Taciana G.S. Guimarães; Iohanna M.N. Ribeiro Menezes; Daniel F. Andrade; Andrea Oliveira; Mario H. Gonzalez
Source:
Trends in analytical chemistry 2022 pp. 116596
ISSN:
0165-9936
Subject:
Raman spectroscopy; X-radiation; alkali treatment; atomic absorption spectrometry; chemical analysis; chemometrics; combustion; digestion; fluorescence; liquid-liquid extraction; microwave treatment; toxicity; ultrasonic treatment; ultraviolet radiation
Abstract:
... Currently, there is a huge demand for the development of analytical methods for chemical analysis. Sustainable methods have aroused the interest of researchers in the last years. This paper reviews important technologies for digestion and solid-liquid extraction approaches, with emphasis in emerging greener methods for the elemental analysis of different samples. Analytical technologies such as Mi ...
DOI:
10.1016/j.trac.2022.116596

2. A chemometric assessment and profiling of the essential oils from Hibiscus sabdariffa L. from Kurdistan, Iraq

Author:
Mohammed Farhad Ibrahim; Francesco Saverio Robustelli della Cuna; Carla Villa; Marco Corti; Hawraz Ibrahim M. Amin; Pawan Faris; Pietro Grisoli; Gloria Brusotti
Source:
Natural product research 2022 v.36 no.9 pp. 2409-2412
ISSN:
1478-6427
Subject:
Hibiscus sabdariffa; calyx; chemometrics; commercialization; common cold; hydrodistillation; hypotension; microwave treatment; research; steam distillation; tea; tropical plants; Iraq
Abstract:
... Hibiscus sabdariffa L. is a tropical plant belonging to the Malvaceae family. In Kurdistan, the Autonomous Region of Iraq, water infusion of H. sabdariffa calyces is recommended for the treatment of hypotension and the common cold. Three distillation techniques: hydrodistillation (HD), steam distillation (SD), and solvent-free microwave-assisted extraction (SFME) have been compared to obtain the e ...
DOI:
10.1080/14786419.2020.1833198

3. A comparison study of three heating assisted enzyme inactivation pretreatments on the physicochemical properties and edible quality of highland barley grain and flour

Author:
Meng-jia Li; Hao-ran Wang; Li-Tao Tong; Bei Fan; Xi-juan Yang; Ruo-qi Sun; Li-ya Liu; Feng-zhong Wang; Li-li Wang
Source:
Journal of cereal science 2022 v.104 pp. 103404
ISSN:
0733-5210
Subject:
barley; carboxylic ester hydrolases; chewiness; crystal structure; enzyme inactivation; flour; gelatinization; hardness; heat; microwave treatment; peroxidase; shelf life; steam
Abstract:
... Enzyme inactivation is vital to improve the shelf life of highland barley (HB), but the impacts of different heating assisted enzyme inactivation pretreatment (HAEIP) on structure, physicochemical properties and edible quality remain unclear. This study evaluated the effects of three representative HAEIP for microwave, roasting and superheated steam (SS) on the properties of HB grain and flour bas ...
DOI:
10.1016/j.jcs.2021.103404

4. A comprehensive study for taste and odor characteristics using electronic sensors in broccoli floret with different methods of thermal processing

Author:
Seong Jun Hong; Sojeong Yoon; Jookyeong Lee; Seong Min Jo; Hyangyeon Jeong; Youngseung Lee; Sung‐Soo Park; Eui‐Cheol Shin
Source:
Journal of food processing and preservation 2022 v.46 no.4 pp. e16435
ISSN:
0145-8892
Subject:
bitterness; broccoli; dimethyl disulfide; electronic nose; electronic tongue; florets; food industry; frying; methanethiol; microwave treatment; multivariate analysis; odors; saltiness; sourness; sweetness; taste; umami
Abstract:
... This study aims to investigate the taste and odor characteristics of broccoli by different thermal processes. For electronic tongue analysis, sourness and umami tastes increased after thermal processing, however, saltiness, sweetness, and bitterness decreased after thermal processing. Among all broccolis, air‐fried broccoli was the highest sourness (6.9) and umami (7.8) tastes, however, saltiness ...
DOI:
10.1111/jfpp.16435

5. A comprehensive study for taste and odor compounds using electronic tongue and nose in broccoli stem with different thermal processing

Author:
Seong Jun Hong; Hyangyeon Jeong; Sojeong Yoon; Seong Min Jo; Youngseung Lee; Sung-Soo Park; Eui-Cheol Shin
Source:
Food science and biotechnology 2022 v.31 no.2 pp. 191-201
ISSN:
1226-7708
Subject:
Maillard reaction; biotechnology; bitterness; broccoli; electronic nose; electronic tongue; frying; microwave treatment; nose; odors; pyridines; saltiness; sourness; sweetness; taste; umami
Abstract:
... This study analyzed taste and odor profiles in broccoli stems with different methods of thermal processing using electronic tongue and electronic nose. In electronic tongue analysis, umami and bitterness were obviously changed upon thermal processing, however, saltiness, sweetness, and sourness showed slight variations. Between raw and thermally processed broccolis, microwaved broccoli showed the ...
DOI:
10.1007/s10068-021-01029-0

6. A facile aqueous production of bisphosphonated-polyelectrolyte functionalized magnetite nanoparticles for pH-specific targeting of acidic-bone cells

Author:
Md. Abdur Rahman; Bungo Ochiai
Source:
RSC advances 2022 v.12 no.13 pp. 8043-8058
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; chitosan; crystal structure; electrolytes; erythrocytes; fluorescein; isothiocyanates; magnetism; magnetite; microwave treatment; pH; stabilizers; therapeutics; thermogravimetry
Abstract:
... Bone malignancy treatment is being hindered due to the insufficient selectivity of therapeutic nanoparticles towards malignant bone sites. Polyelectrolyte functionalized magnetic nanoparticles having dually specific pH-sensing ability and bisphosphonate moieties, can be an effective solution for selective targeting of bone malignancies. First, polyelectrolyte was prepared via N-carboxycitraconyzat ...
DOI:
10.1039/d1ra09445a

7. A modified microwave hydrodistillation and simultaneous extraction in a rotating state to obtain essential oil, rosmarinic acid, and polysaccharides with sucrose stearate as an additive from Perilla frutescens

Author:
Xinyu Yang; Tingting Liu; Mengxia Wei; Ru Zhao; Huiyan Gu; Jialei Li; Fengli Chen; Lei Yang
Source:
Industrial crops and products 2022 v.181 pp. 114807
ISSN:
0926-6690
Subject:
Perilla frutescens; essential oils; hydrodistillation; microwave treatment; polysaccharides; rosmarinic acid; stearic acid; sucrose
Abstract:
... An improved approach was developed to obtain essential oil, rosmarinic acid, and polysaccharides with sucrose stearate as a green additive from Perilla frutescens (L.) Britt. Leaves using microwave-induced hydrodistillation and simultaneous extraction (MHDE). In this process, we realize the rotation of the material through a rotary motor so that the material is uniformly irradiated by microwaves. ...
DOI:
10.1016/j.indcrop.2022.114807

8. A nitrogen-doped carbon dots based fluorescent nanosensor for sensitive assay of Fe3+ ions in Dioscorea opposita Thunb

Author:
Xin Zhang; Lizhu Fu; Yujiao Hou; Nan Long; Guangqiang Zhu; Xiaofang Liao; Lidong Zhou; Jinghua Lu; Weijun Kong
Source:
Industrial crops and products 2022 v.177 pp. 114439
ISSN:
0926-6690
Subject:
Dioscorea oppositifolia; biocompatibility; detection limit; fluorescence; microwave treatment; photostability; sensors (equipment); water solubility
Abstract:
... Trace detection of Fe³⁺ ions in complex matrices requires the development of highly sensitive sensors. Nitrogen-doped carbon dots (N-CDs) with admirable fluorescence efficiency, high photostability, and good biocompatibility have drawn special interest in fluorescent sensing of metal ions. In this work, a facile and economical microwave-assisted strategy was introduced for rapid synthesis of green ...
DOI:
10.1016/j.indcrop.2021.114439

9. A novel and efficient method for punicic acid-enriched diacylglycerol preparation: Enzymatic ethanolysis of pomegranate seed oil catalyzed by Lipozyme 435

Author:
Duan Zhou; Mouming Zhao; Jiankang Wang; Muniba Faiza; Xuefeng Chen; Junjie Cui; Ning Liu; Daoming Li
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.159 pp. 113246
ISSN:
0023-6438
Subject:
acid value; carboxylic ester hydrolases; diacylglycerols; ethanolysis; microwave treatment; peroxide value; pomegranates; punicic acid; seed oils
Abstract:
... Punicic acid (PA)-enriched diacylglycerol (DAG) possesses both the beneficial effects of PA and DAG. However, few studies have focused on the preparation of PA-enriched DAG. Here, we report a novel and highly efficient method for the preparation of PA-enriched DAG through Lipozyme 435-catalyzed ethanolysis of pomegranate seed oil (PSO). Firstly, PSO was obtained through microwave-assisted extracti ...
DOI:
10.1016/j.lwt.2022.113246

10. A novel method of preparing vanadium-based precursors and their enhancement mechanism in vanadium nitride preparation

Author:
Ailian Wen; Zhenlei Cai; Yimin Zhang; Hong Liu
Source:
RSC advances 2022 v.12 no.21 pp. 13093-13102
ISSN:
2046-2069
Subject:
microwave treatment; nitrides; nitrogen content; particle size; temperature; thermal degradation; thermodynamics; vanadium
Abstract:
... Vanadium nitride is widely used because of its excellent properties. The existing production methods are affected by the problems of complex preparation for the vanadium source, high temperature, and low N content. In this work, a wide range of vanadium solutions were used as the vanadium source to prepare vanadium nitride with high N content. In this work, a novel precursor was prepared by a micr ...
DOI:
10.1039/d2ra00584k

11. A novel thiol-labile cysteine protecting group for peptide synthesis based on a pyridazinedione (PD) scaffold

Author:
Richard J. Spears; Clíona McMahon; Monika Shamsabadi; Calise Bahou; Ioanna A. Thanasi; Léa N. C. Rochet; Nafsika Forte; Fabien Thoreau; James R. Baker; Vijay Chudasama
Source:
Chemical communications 2022 v.58 no.5 pp. 645-648
ISSN:
1364-548X
Subject:
cysteine; microwave treatment; oxytocin; peptides
Abstract:
... Herein we report a thiol-labile cysteine protecting group based on an unsaturated pyridazinedione (PD) scaffold. We establish compatibility of the PD in conventional solid phase peptide synthesis (SPPS), showcasing this in the on-resin synthesis of biologically relevant oxytocin. Furthermore, we establish the applicability of the PD protecting group towards both microwave-assisted SPPS and native ...
DOI:
10.1039/d1cc03802h

12. A review of microwave-assisted advanced oxidation processes for wastewater treatment

Author:
Huiling Xia; Chengwei Li; Guoying Yang; Zhiang Shi; Chenxi Jin; Wenzhi He; Jingcheng Xu; Guangming Li
Source:
Chemosphere 2022 v.287 pp. 131981
ISSN:
0045-6535
Subject:
electrochemistry; evolution; heat; microwave treatment; oxidation; photochemistry; pollutants; wastewater treatment
Abstract:
... Microwave (MW) technology has gained increasing interest in wastewater treatment due to its unique properties, such as fast and uniform heating, hot spots effect, and non-thermal effect. MW enhances the production of active radicals (e.g., OH, SO₄⁻), which exerts a stronger integrated treatment effect in combination with advanced oxidation processes. Over the years, microwave-assisted advanced oxi ...
DOI:
10.1016/j.chemosphere.2021.131981

13. A sustainable and integrated natural surfactant mediated microwave-assisted extraction technique enhances the extraction of phytochemicals from plants

Author:
Zelin Wang; Hongyi Pan; Jian Xu; Yuanhang Chang; Chang Liu; Ying Zhang; Han Yang; Congjia Duan; Jin Huang; Yujie Fu
Source:
Industrial crops and products 2022 v.184 pp. 115043
ISSN:
0926-6690
Subject:
Eleutherococcus senticosus; chlorogenic acid; coumarin; ethanol; experimental design; foams; free radicals; hydrophilicity; hydrophobicity; industry; lignans; liquids; microwave treatment; phytochemicals; protocatechuic acid; saponins; solvents; surfactants; temperature; ultrasonic treatment
Abstract:
... Natural surfactant mediated microwave-assisted extraction (NSM-MAE) technique was developed and performed for the simultaneous extraction of hydrophilic and hydrophobic phytochemicals from plant matrix, such as phenolic acid, coumarin, bisepoxy lignan and phenylpropanoid from Acanthopanax senticosus stems. The natural surfactant soapnut saponin (SS) ethanol solution was chosen as the best solvent ...
DOI:
10.1016/j.indcrop.2022.115043

14. A sustainable valorization of industrial tomato seeds (cv Rio Grande): Sequential recovery of a valuable oil and optimized extraction of antioxidants by microwaves

Author:
Toufik Ouatmani; Hayate Haddadi‐Guemghar; Lila Boulekbache‐Makhlouf; Djamila Mehidi‐Terki; Azzedine Maouche; Khodir Madani
Source:
Journal of food processing and preservation 2022 v.46 no.1 pp. e16123
ISSN:
0145-8892
Subject:
antioxidant activity; biofuels; byproducts; fatty acid composition; feedstocks; gas chromatography; income; irradiation; microwave treatment; response surface methodology; seed oils; solid phase extraction; solvents; sustainable development; tomato paste; tomatoes; wastes
Abstract:
... Tomato seeds are a major waste of tomato paste manufacturing. In this study, an interesting yield of oil was obtained (21.69%) from the seeds of an industrial tomato byproduct (Rio Grande variety), after a Soxhlet extraction. The fatty acid profile of the extracted oil was established by gas chromatography and the tomato seed oil (TSO) was rich in unsaturated fatty acids (79.83%). After that, micr ...
DOI:
10.1111/jfpp.16123

15. A two-electron transfer mechanism of the Zn-doped δ-MnO₂ cathode toward aqueous Zn-ion batteries with ultrahigh capacity

Author:
Wen Zhao; Jared Fee; Harshul Khanna; Seth March; Nathaniel Nisly; Samantha Joy B. Rubio; Can Cui; Zhuo Li; Steven L. Suib
Source:
Journal of materials chemistry A 2022 v.10 no.12 pp. 6762-6771
ISSN:
2050-7496
Subject:
birnessite; cathodes; electrochemistry; energy; microstructure; microwave treatment; reaction kinetics; specific energy
Abstract:
... Neutral aqueous zinc-ion batteries (ZIBs) have attracted considerable attention due to their safe and green features. As one typical cathode, birnessite MnO₂ (δ-MnO₂) suffers from low conductivity and structural instability, and its energy storage mechanism is still not well established yet. Herein, we developed a Zn-doped δ-MnO₂ material via a facile and effective microwave-assisted method for th ...
DOI:
10.1039/d1ta10864f

16. A versatile biomimetic multienzyme cascade nanoplatform based on boronic acid-modified metal–organic framework for colorimetric biosensing

Author:
Hao Shen; Haimei Shi; Bin Feng; Chuanfan Ding; Shaoning Yu
Source:
Journal of materials chemistry B 2022 v.10 no.18 pp. 3444-3451
ISSN:
2050-7518
Subject:
NAD(P)H oxidase (H2O2-forming); acetylcholine; acetylcholinesterase; ascorbic acid; bioactive properties; biomimetics; catalytic activity; choline oxidase; colorimetry; coordination polymers; detection limit; glutathione; microwave treatment; peroxidase; sarcosines
Abstract:
... The combination of bio- and chemo-catalysts for sequential cascades has received considerable attention in analytical fields because of the regulable catalytic efficiency and selectivity under various physiological conditions. In this paper, a versatile multienzyme cascade nanoplatform with excellent activity for biosensing is demonstrated by combining metal–organic framework (MOF)-based nanozyme ...
DOI:
10.1039/d2tb00158f

17. Absorbing oxygen carrier induces phosphorus enrichment in sludge: Preparation and screening

Author:
Xiaoyu Yan; Shuheng Zhao; Jiatao Dang; Jianjun Hu; Panbo Yang; Zhen Huang; Wei Wang
Source:
Fuel processing technology 2022 v.231 pp. 107254
ISSN:
0378-3820
Subject:
absorption; gasification; iron; microwave treatment; oxygen; particle size; phosphorus; sludge; temperature; ultrasonics
Abstract:
... Phosphorus recovery from sludge is considered a feasible approach. By combining the oxygen carrier gasification technology and microwave heating, an absorbing oxygen carrier (AOC) is used in this study to successfully induce phosphorus enrichment in sludge char. The AOC, which is based on iron and supported on SiC, has been prepared via ultrasonic impregnation. The effects of preparation condition ...
DOI:
10.1016/j.fuproc.2022.107254

18. African Shea Butter Properties Related to Common Extraction Technologies: A Review

Author:
Bertrand W. F. Goumbri; Thais Lomonaco Teodoro da Silva; Roland D. Marini; Rasmané Semdé; Touridomon Issa Somé; Sabine Danthine
Source:
Food and bioprocess technology 2022 v.15 no.2 pp. 231-248
ISSN:
1935-5130
Subject:
bioprocessing; butter; lipids; microwave treatment; shea butter; Africa
Abstract:
... Shea butter is an important lipid material for food, cosmetic, and pharmaceutical industries. Most of the shea butter consumed in the world comes from Africa. The extraction protocol is not standardized among all regions of production. It can be done using either traditional or improved (semi-mechanical) processes. The quality of shea butter and its composition depend on multiple factors such as t ...
DOI:
10.1007/s11947-021-02708-w

19. Alginate-enabled green synthesis of S/Ag1.93S nanoparticles, their photothermal property and in-vitro assessment of their anti-skin-cancer effects augmented by a NIR laser

Author:
Wei Chuen Yoong; Chui Fung Loke; Joon Ching Juan; Khatijah Yusoff; Norhafizah Mohtarrudin; Tetsu Tatsuma; Ying Xu; Teck Hock Lim
Source:
International journal of biological macromolecules 2022 v.201 pp. 516-527
ISSN:
0141-8130
Subject:
X-ray diffraction; aqueous solutions; carcinoma; cell viability; cytotoxicity; heat; metastasis; microwave treatment; skin neoplasms; sodium alginate; surfactants; zeta potential
Abstract:
... We report herein the design and synthesis of colloidally-stable S/Ag₁.₉₃S nanoparticles, their photothermal conversion properties and in vitro cytotoxicity toward A431 skin cancer cells under the excitation of a minimally-invasive 980 nm near-infrared (NIR) laser. Micron-sized S particles were first synthesized via acidifying Na₂S₂O₃ using biocompatible sodium alginate as a surfactant. In the pres ...
DOI:
10.1016/j.ijbiomac.2022.01.062

20. Amorphous-crystalline cobalt phosphide hollow nanocubes induced by dual ligand environment for highly efficient hydrogen evolution

Author:
Jing-Yi Xie; Hai-Jun Liu; Yi-Nuo Zhen; Yi-Wen Dong; Ren-Ni Luan; Ning Yu; Da-Peng Liu; Yong-Ming Chai; Bin Dong
Source:
Journal of colloid and interface science 2022 v.614 pp. 84-91
ISSN:
0021-9797
Subject:
Gibbs free energy; catalytic activity; cobalt; crystal structure; hydrogen; hydrogen production; ligands; microwave treatment; phosphides
Abstract:
... CoP is one of the most promising catalysts for catalyzing hydrogen evolution reaction. The foremost issue is how to improve intrinsic activity by regulating electronic structure at the molecular level. Herein, utilizing selective combination of EDTA and Co²⁺, an amorphous-crystalline CoP with lower valence cobalt and hollow porous structure which induced by dual ligand environment is successfully ...
DOI:
10.1016/j.jcis.2022.01.109

21. An economic and environmental assessment of biofuel produced via microwave-assisted catalytic pyrolysis of forest residues

Author:
Hui Zhu; Jack Saddler; Xiaotao Bi
Source:
Energy conversion and management 2022 pp. 115723
ISSN:
0196-8904
Subject:
administrative management; biochar; biofuels; biomass; biorefining; carbon; carbon markets; coproducts; cradle-to-gate; economic feasibility; electricity; energy conversion; environmental assessment; environmental impact; forests; income; issues and policy; microwave treatment; petroleum; pollution control; pyrolysis; transportation industry; value added; Canada
Abstract:
... The conversion of forest residues into biofuels will enhance the decarbonization of the transportation sector and help the world reach its net-zero targets. Microwave-assisted catalytic pyrolysis (MACP) is an emerging thermo-catalytic conversion technology which, when coupled with low-carbon electricity, will result in negative emissions. The work described here assessed the economic feasibility a ...
DOI:
10.1016/j.enconman.2022.115723

22. An efficient biosynthesis of palladium nanoparticles using Bael gum and evaluation of their catalytic and antibacterial activity

Author:
Kondaiah Seku; G. Bhagavanth Reddy; Syed Sulaiman Hussaini; Babu Pejjai; Mushtaq Hussain; D. Madhusudan Reddy; Mahmoud A.K. Khazaleh; Girija Mangatayaru
Source:
International journal of biological macromolecules 2022 v.209 pp. 912-922
ISSN:
0141-8130
Subject:
Aegle marmelos; antibacterial properties; biosynthesis; catalysts; catalytic activity; dyes; methyl orange; microwave treatment; monochloroacetic acid; palladium
Abstract:
... We report a facile microwave-assisted synthesis of palladium nanoparticles (PdNPs) using Bael gum (BG) and it's carboxymethylated (CMBG) derivative. The prepared nanoparticles (BG@PdNPs and CMBG@PdNPs) were evaluated for antibacterial and catalytic activity in the reduction of organic dye pollutants. The developed synthetic method is simple, low cost and eco-friendly, wherein the process requires ...
DOI:
10.1016/j.ijbiomac.2022.04.070

23. An experimental study on changes in sound absorption capability of spruce (Picea sitchensis), Douglas fir (Pseudotsuga menziesii), and larch (Larix kaempferi) after microwave treatment

Author:
Eun-Suk Jang; Chun-Won Kang
Source:
Journal of wood science 2022 v.68 no.1 pp. 2
ISSN:
1435-0211
Subject:
Larix kaempferi; Picea sitchensis; Pseudotsuga menziesii; absorbance; absorption; microwave treatment; permeability
Abstract:
... This study investigated changes in the sound absorption coefficients of three anatomical sections of cubed spruce (Picea sitchensis), Douglas fir (Pseudotsuga menziesii), and larch (Larix kaempferi) after microwave treatment. Microwave treatment at 1000 W and 2.4 GHz for 20 min increased the sound absorption coefficients (at 2000–5000 Hz) of spruce by 6.9% in the transverse section, 20.0% in the r ...
DOI:
10.1186/s10086-021-02010-5

24. An overview of carotenoid extractions using green solvents assisted by Z-isomerization

Author:
Jiahao Yu; Xuwei Liu; Lianfu Zhang; Ping Shao; Weina Wu; Zhirong Chen; Jiandong Li; Catherine M.G.C. Renard
Source:
Trends in food science & technology 2022 v.123 pp. 145-160
ISSN:
0924-2244
Subject:
carbon dioxide; carotenoids; cell walls; color; crystal structure; food science; homogenization; hydrophobicity; microwave treatment; solubility; toxicity; toxicology; ultrasonic treatment; water content
Abstract:
... The wide application of carotenoids in food, cosmetic, and pharmaceutical products due to their bioactive and color properties has emphasized a need for improved methods for their extraction. Recently, “green chemistry” has become a significant focus of research to minimize environmental and health impacts, leading to increased demand for safe and sustainable solvents. Several specific green solve ...
DOI:
10.1016/j.tifs.2022.03.009

25. An ultrasensitive UHPLC-ESI-MS/MS method augmented with a controlled microwave derivatization reaction for quantitation of vitamin D3 and its major metabolites in COVID-19 patients

Author:
Sameh A. Ahmed; Hani M.J. Khojah; Sultan S. Al-Thagfan; Yaser M. Alahmadi; Yasser A. Mohammed
Source:
Talanta 2022 v.246 no. pp. 123497
ISSN:
0039-9140
Subject:
COVID-19 infection; acetonitrile; chemiluminescence; cholecalciferol; derivatization; detection limit; disease severity; formic acid; humans; immunoassays; metabolites; microwave treatment
Abstract:
... It is established that vitamin D deficiency is correlated with the disease severity in COVID-19 patients. However, the reliable and sensitive quantitation of vitamin D3 (D3) and its metabolites remains a difficult challenge. Herein, a novel ultrasensitive and reliable UHPLC-ESI-MS/MS method was developed and validated for the quantitation of D3 and its major metabolites in COVID-19 patients. The m ...
DOI:
10.1016/j.talanta.2022.123497

26. Analysis method development and health risk assessment of pesticide and heavy metal residues in Dendrobium Candidum

Author:
Zihan Zhang; Jiajin Song; Houpu Zhang; Zhiruo Zheng; Tongxin Li; Shenggan Wu; Bowei He; Bizeng Mao; Yunlong Yu; Hua Fang
Source:
RSC advances 2022 v.12 no.11 pp. 6869-6875
ISSN:
2046-2069
Subject:
Dendrobium; health effects assessments; heavy metals; human health; microwave treatment; pesticides; risk; standard deviation
Abstract:
... Herbal medicines that are widely used worldwide are easily contaminated by pesticides and heavy metals, threatening human health. In this study, a modified QuEChERS pre-treatment method combined with HPLC/GC-MS/MS was established for the determination of 24 pesticide residues in Dendrobium candidum. The average recoveries of 24 pesticides in D. candidum were 76.9–110.0% with the relative standard ...
DOI:
10.1039/d1ra07641h

27. Application of box–behnken design–based response surface methodology optimization for predicting lignin residue following microwave-assisted inorganic salt (NaCl) pretreatment of Napier grass

Author:
Phattharamat Thiamngoen; Pitiporn Manokhoon; Thaneeya Rangseesuriyachai
Source:
International journal of green energy 2022 v.19 no.8 pp. 879-887
ISSN:
1543-5083
Subject:
Cenchrus purpureus; biomass; cellulose; hemicellulose; lignin; lignin content; lignocellulose; microwave radiation; microwave treatment; models; renewable energy sources; response surface methodology
Abstract:
... Microwave irradiation is an effective pretreatment method for lignocellulosic biomass. Microwave-assisted inorganic salt (MAIS) pretreatment was employed to treat Napier grass (Pakchong 1) (Pennisetum purpureum) under different conditions to break down lignin from cellulose and hemicellulose in plant cell walls. Lignin and hemicellulose content were investigated under different NaCl concentrations ...
DOI:
10.1080/15435075.2021.1973477

28. Application of infrared and microwave heating prior to freezing of pork: Effect on frozen meat quality

Author:
Rui Hu; Min Zhang; Arun S. Mujumdar
Source:
Meat science 2022 v.189 pp. 108811
ISSN:
0309-1740
Subject:
cohesion; color; frozen meat; hardness; meat quality; microwave treatment; pH; pork; texture
Abstract:
... The effect of thermal treatment using infrared and microwave fields on freezing of pork loin was investigated. Several infrared and microwave treatment protocols were designed and tested to determine the thawing losses is each case to identify the most suitable one which yielded the best quality. In addition, the state of moisture in the meat, cooking loss, texture, color, pH, Thiobarbituric acid- ...
DOI:
10.1016/j.meatsci.2022.108811

29. Are improvements in convenience good enough for consumers to prefer new food processing technologies?

Author:
Dolores Garrido; Rosa Karina Gallardo
Source:
Agribusiness 2022 v.38 no.1 pp. 73-92
ISSN:
0742-4477
Subject:
agribusiness; extended shelf life; longevity; microwave treatment; pasteurization; ready-to-cook foods; refrigeration; willingness to pay
Abstract:
... We use choice experiments to investigate heterogeneity in preferences for a refrigerated ready‐to‐heat meal with an extended shelf life and the processing technology (i.e., microwave‐assisted pasteurization) that provides that longevity. On average, an extra day of shelf life decreases the utility associated with purchasing and eating the meal. A segmentation analysis reveals the presence of conve ...
DOI:
10.1002/agr.21716

30. Artificial neural network method modeling of microwave-assisted esterification of PFAD over mesoporous TiO2‒ZnO catalyst

Author:
Soroush Soltani; Taha Roodbar Shojaei; Nasrin Khanian; Thomas Shean Yaw Choong; Nilofar Asim; Yue Zhao
Source:
Renewable energy 2022 v.187 pp. 760-773
ISSN:
0960-1481
Subject:
algorithms; biodiesel; catalysts; esterification; fatty acid methyl esters; fatty acids; microwave treatment; neural networks; oils; porous media
Abstract:
... An artificial neural network (ANN) was employed to predict biodiesel yield through microwave-assisted esterification of palm fatty acid distillate (PFAD) oil over TiO₂‒ZnO mesostructured catalyst. The experimental data of biodiesel content (%) was carried out via changing three input factors (i.e. methanol:PFAD molar ratio, catalyst concentration, and reaction time). The results indicated that ANN ...
DOI:
10.1016/j.renene.2022.01.123

31. Assessment of anthropogenic pollution by UV filters using macrophytes as bioindicators

Author:
M. Isabel Cadena-Aizaga; Sarah Montesdeoca-Esponda; Ángelo Santana-Del Pino; Zoraida Sosa-Ferrera; José Juan Santana-Rodríguez
Source:
Science of the total environment 2022 v.832 pp. 155012
ISSN:
0048-9697
Subject:
Cymodocea nodosa; bioaccumulation; macroalgae; marine environment; microwave treatment; pollution; seagrasses; tandem mass spectrometry; ultra-performance liquid chromatography; Canary Islands; Spain
Abstract:
... Marine environment pollution has increased in recent decades as a result of anthropogenic activities. Macrophytes can assimilate the compounds dissolved in the water and respond to changes in surround conditions, for that, they can be used as bioindicators of pollution in aquatic environments. Currently organic ultraviolet (UV) filters have shown ever-increasing in pollution levels in marine ecosy ...
DOI:
10.1016/j.scitotenv.2022.155012

32. Betalain plant sources, biosynthesis, extraction, stability enhancement methods, bioactivity, and applications

Author:
Juan Pablo Carreón-Hidalgo; Diana Carolina Franco-Vásquez; Darío R. Gómez-Linton; Laura J. Pérez-Flores
Source:
Food research international 2022 v.151 pp. 110821
ISSN:
0963-9969
Subject:
Amaranthaceae; Basellaceae; Cactaceae; Nyctaginaceae; Portulacaceae; activation energy; antioxidants; betacyanins; betalains; biosynthesis; cosmetics; electric field; electrospraying; encapsulation; food processing; food research; freeze drying; gelation; hydrogels; microwave treatment; oxygen; shelf life; temperature; ultrasonic treatment; water activity
Abstract:
... Betalains are plant pigments with functional properties used mainly as food dyes. However, they have been shown to be unstable to different environmental factors. This paper provides a review of (1) Betalain plant sources within several plant families such as Amaranthaceae, Basellaceae, Cactaceae, Portulacaceae, and Nyctaginaceae, (2) The biosynthesis pathway of betalains for both betacyanins and ...
DOI:
10.1016/j.foodres.2021.110821

33. Bifunctional Dalteparin/Enoxaparin coated nanosilver formulation to prevent bloodstream infections during hemodialysis

Author:
Mukesh Kumar Meher; Krishna Mohan Poluri
Source:
Carbohydrate polymers 2022 v.291 pp. 119546
ISSN:
0144-8617
Subject:
anticoagulants; biofilm; blood flow; catheters; enoxaparin; hemodialysis; microwave treatment; nanosilver; sulfates
Abstract:
... Catheter-related bloodstream infections (CRBSI) are the major concern of patients undergoing hemodialysis. The current study formulates bifunctional low molecular weight heparin (LMWH) coated nanosilver as an effective anticoagulant and antimicrobial/anti-biofilm agent. Nanosilver formulations were prepared using a microwave-assisted green synthesis approach and stabilized with pharmaceutically ap ...
DOI:
10.1016/j.carbpol.2022.119546

34. Bioactive Compounds from Cocoa Husk: Extraction, Analysis and Applications in Food Production Chain

Author:
Tarun Belwal; Christian Cravotto; Sudipta Ramola; Monika Thakur; Farid Chemat; Giancarlo Cravotto
Source:
Foods 2022 v.11 no.6 pp. -
ISSN:
2304-8158
Subject:
beverages; chocolate; circular economy; food production; fruit weight; hulls; liquids; methylxanthines; microwave treatment; phytosterols; polyphenols; sausages; supercritical fluid extraction
Abstract:
... Cocoa husk is considered a waste product after cocoa processing and creates environmental issues. These waste products are rich in polyphenols, methylxanthine, dietary fibers, and phytosterols, which can be extracted and utilized in various food and health products. Cocoa beans represent only 32–34% of fruit weight. Various extraction methods were implemented for the preparation of extracts and/or ...
DOI:
10.3390/foods11060798

35. Bioactive hybrid metal-organic framework (MOF)-based nanosensors for optical detection of recombinant SARS-CoV-2 spike antigen

Author:
Navid Rabiee; Yousef Fatahi; Sepideh Ahmadi; Nikzad Abbariki; Amirhossein Ojaghi; Mohammad Rabiee; Fatemeh Radmanesh; Rassoul Dinarvand; Mojtaba Bagherzadeh; Ebrahim Mostafavi; Milad Ashrafizadeh; Pooyan Makvandi; Eder C. Lima; Mohammad Reza Saeb
Source:
Science of the total environment 2022 v.825 pp. 153902
ISSN:
0048-9697
Subject:
COVID-19 infection; Severe acute respiratory syndrome coronavirus 2; antigens; biocompatibility; biosensors; cell viability; coordination polymers; cytotoxicity; detection limit; environment; microwave treatment; mortality; porosity; porphyrins; roughness; toxicity testing
Abstract:
... Fast, efficient, and accurate detection of SARS-CoV-2 spike antigen is pivotal to control the spread and reduce the mortality of COVID-19. Nevertheless, the sensitivity of available nanobiosensors to detect recombinant SARS-CoV-2 spike antigen seems insufficient. As a proof-of-concept, MOF-5/CoNi₂S₄ is developed as a low-cost, safe, and bioactive hybrid nanostructure via the one-pot high-gravity p ...
DOI:
10.1016/j.scitotenv.2022.153902

36. Bioavailability of bioactive compounds of guava leaves (Psidium guajava) aqueous extract concentrated by gravitational and microwave‐assisted cryoconcentration

Author:
Katia Rezzadori; Giordana Demaman Arend; Henrique Jaster; Elixabet Díaz‐de‐Cerio; Vito Verardo; Antonio Segura‐Carretero; Silvani Verruck; Elane Schwinden Prudêncio; José Carlos Cunha Petrus
Source:
Journal of food processing and preservation 2022 v.46 no.2 pp. e16241
ISSN:
0145-8892
Subject:
Psidium guajava; antioxidant activity; antioxidants; bioavailability; catechin; energy; food industry; gastrointestinal system; guavas; microwave treatment
Abstract:
... The effects of gravitational (GC) and microwave‐assisted (MWC) cryoconcentration were studied on the total phenolic content (TPC) and antioxidant activity of aqueous guava leaves extract. An increase in the TPC was observed for all the concentrated fractions by both methods. The concentration efficiency for the GC and MWC processes was 80% and 73% and the concentration index obtained for TPC was 3 ...
DOI:
10.1111/jfpp.16241

37. Biochar production with amelioration of microwave-assisted pyrolysis: Current scenario, drawbacks and perspectives

Author:
Vishal Hadiya; Kartik Popat; Shaili Vyas; Sunita Varjani; Meththika Vithanage; Vijai Kumar Gupta; Avelino Núñez Delgado; Yaoyu Zhou; Pau Loke Show; Muhammad Bilal; Zhien Zhang; Mika Sillanpää; Swayansu Sabyasachi Mohanty; Zeel Patel
Source:
Bioresource technology 2022 v.355 pp. 127303
ISSN:
0960-8524
Subject:
biochar; biofuels; biomass; carbon; microwave treatment; pyrolysis; soil; value added
Abstract:
... In recent years, biomass has been reported to obtain a wide range of value-added products. Biochar can be obtained by heating biomass, which aids in carbon sinks, soil amendments, resource recovery, and water retention. Microwave technology stands out among various biomass heating technologies not only for its effectiveness in biomass pyrolysis for the production of biochar and biofuel but also fo ...
DOI:
10.1016/j.biortech.2022.127303

38. Biological activities and in vitro digestion characteristics of glycosylated α-lactalbumin prepared by microwave heating: Impacts of ultrasonication

Author:
Yue Ma; Yue Liu; Haiying Yu; Sinan Mu; Hongyu Li; Xianqi Liu; Minghan Zhang; Zhanmei Jiang; Juncai Hou
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.158 pp. 113141
ISSN:
0023-6438
Subject:
antioxidant activity; digestion; glycosylation; hydrolysis; hydrophobicity; microwave treatment; ultrasonic treatment; ultrasonics; xanthine oxidase
Abstract:
... The research focuses on application of ultrasonic-assisted glycosylation in food protein modification. Biological activities and in vitro digestion characteristics of the glycosylated α-lactalbumin (UMGLA) and α-lactalbumin (UMLA) prepared by ultrasonic pretreatment and microwave heating at 85 °C for 2 h were investigated mainly through the browning degree, free amino group, reducing sugar and sur ...
DOI:
10.1016/j.lwt.2022.113141

39. Blatter-type radicals as polarizing agents for electrochemical overhauser dynamic nuclear polarization

Author:
Felipe Saenz; Mika Tamski; Jonas Milani; Christophe Roussel; Holger Frauenrath; Jean-Philippe Ansermet
Source:
Chemical communications 2022 v.58 no.5 pp. 689-692
ISSN:
1364-548X
Subject:
electrochemistry; microwave treatment; nuclear magnetic resonance spectroscopy
Abstract:
... Overhauser dynamic nuclear polarization (O-DNP) refers to a microwave-assisted process where an unpaired electron's (e.g. a radical) spin polarization is transferred to surrounding nuclei in solution, thus increasing the nuclear magnetic resonance (NMR) signal intensity of a given substance by several orders of magnitude. The presence of the unpaired electrons, which induces relaxation of the resu ...
DOI:
10.1039/d1cc05350g

40. Burned phytoliths absorbing black carbon as a potential proxy for paleofire

Author:
Haiyan Dong; Xiaobei Wei; Rencheng Li; Richard S Vachula; Shuhui Tan; Lintong Zhou; Tianxi Gan
Source:
Holocene 2022 v.32 no.5 pp. 442-450
ISSN:
1477-0911
Subject:
Earth system science; Holocene epoch; adsorption; carbon; color; grasses; microwave treatment; phytoliths
Abstract:
... Developing and refining fire proxies is paramount for reliable reconstructions and the inferences that they gain about fire in the Earth System. Burned phytolith index is an important tool for fire reconstruction. However, the source of the darkened color which appears on burned phytoliths is controversial and requires additional study to understand the relationship between phytolith characteristi ...
DOI:
10.1177/09596836221074033

41. Cascade Synthesis of Kinase-Privileged 3-Aminoindazoles via Intramolecular N–N Bond Formation

Author:
W. Felix Zhu; Andreas Krämer; Stefan Knapp; Ewgenij Proschak; Victor Hernandez-Olmos
Source:
Journal of organic chemistry 2022 v.87 no.5 pp. 3856-3862
ISSN:
1520-6904
Subject:
fluorometry; microwave treatment; organic chemistry
Abstract:
... 3-Aminoindazoles are privileged scaffolds for bioactive drug-like molecules. In this study, a microwave-assisted cascade reaction for the synthesis of N-1 substituted 3-aminoindazoles with yields up to 81% has been developed. Starting from 3-(2-bromoaryl)-1,2,4-oxadiazol-5(4H)-ones, the reaction exhibits a broad substrate scope including anilines, aliphatic amines, and sulfonamides and bypasses se ...
DOI:
10.1021/acs.joc.1c03057

42. Catalytic biofuel production over 3D macro-structured cheese-like Mn-promoted TiO2 isotype: Mn-catalyzed microwave-combustion design

Author:
Ensie Bekhradinassab; Akram Tavakoli; Mohammad Haghighi; Maryam Shabani
Source:
Energy conversion and management 2022 v.251 pp. 114916
ISSN:
0196-8904
Subject:
administrative management; biodiesel; catalysts; cheeses; combustion; energy conversion; fuel production; microwave treatment; nanosheets; titanium dioxide
Abstract:
... The efficient 3D cheese like Mn-doped TiO₂ catalyst was synthesized via Mn-catalyzed microwave-induced combustion for biodiesel production. The characterizations of Mn (0, 2, 4, and 6 at.%)-doped TiO₂ were performed by XRD, FESEM, EDX, TEM, BET-BJH, and TPD-NH₃ analyses. To compare the Mn (0 and 4 at.%)-doped TiO₂ was also synthesized using muffle combustion. FESEM images and 3D surface analyses e ...
DOI:
10.1016/j.enconman.2021.114916

43. Challenges and opportunities in microwave-assisted catalytic pyrolysis of biomass: A review

Author:
Xueyong Ren; Mohammad Shanb Ghazani; Hui Zhu; Wenya Ao; Han Zhang; Emma Moreside; Jinjiao Zhu; Pu Yang; Na Zhong; Xiaotao Bi
Source:
Applied energy 2022 v.315 pp. 118970
ISSN:
0306-2619
Subject:
absorbents; biochar; biofuels; biomass; catalysts; catalytic activity; commercialization; convection; direct contact; electromagnetic field; energy; feedstocks; liquids; microwave treatment; pyrolysis; research and development; synergism; temperature; thermal conductivity; vapors
Abstract:
... Microwave-assisted catalytic pyrolysis (MACP) is one of the emerging technologies for efficiently converting the solid biomass residues to valuable products, including liquid bio-oil and solid biochar. However, due to the poor dielectric properties, low thermal-conductivity, and complex compositions of biomass feedstock, two major technical challenges of biomass MACP technologies are how to heat b ...
DOI:
10.1016/j.apenergy.2022.118970

44. Characterization of edible film fabricated with HG-type hawthorn pectin gained using different extraction methods

Author:
Chunge Qin; Guangcheng Yang; Chuanhe Zhu; Min Wei
Source:
Carbohydrate polymers 2022 v.285 pp. 119270
ISSN:
0144-8617
Subject:
Crataegus; citric acid; crystal structure; edible films; hydrochloric acid; hydrophilicity; microwave treatment; oxygen; pectins; permeability; thermal stability; water vapor
Abstract:
... In this study, four HG-type pectins were obtained using hydrochloric acid extraction (HA-HP), citric acid extraction (CA-HP), ultrasonic-assisted extraction (UA-HP), and microwave-assisted extraction (MA-HP). Four pectin films (HA-HPF, CA-HPF, UA-HPF, and MA-HPF) were prepared by a solution casting method, respectively. Compared to four pectins, the asymmetric COO − vibrational peak of UA-HPF, HA- ...
DOI:
10.1016/j.carbpol.2022.119270

45. Chitosan-Derived Carbon Dots with Room-Temperature Phosphorescence and Energy Storage Enhancement Properties

Author:
Qiong Wu; Lu Wang; Yan Yan; Shuang Li; Shitao Yu; Jingguo Wang; Lang Huang
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.9 pp. 3027-3036
ISSN:
2168-0485
Subject:
ambient temperature; boric acid; capacitance; chitosan; energy; fluorescence; graphene; graphene oxide; green chemistry; microwave treatment; phosphorescence; sodium hydroxide; wavelengths
Abstract:
... Carbon dots with fluorescence from blue to green have been prepared by a microwave-assisted hydrothermal reaction of a chitosan and sodium hydroxide solution. The carbon dots are conjugated graphite nuclei with developed groups on the surface. OH– acts as an activation agent to induce changes in carbon nuclei and surface properties, leading to a high percentage of C═O, C–N═C, and C═C groups on car ...
DOI:
10.1021/acssuschemeng.1c08299

46. Chromium (VI) detection by microbial carbon dots: Microwave synthesis and mechanistic study

Author:
Amith G. Anil; Sukanya Ramachandran; Vineet Kumar; Sankaran Subramanian; Praveen C. Ramamurthy
Source:
Journal of basic microbiology 2022 v.62 no.3-4 pp. 455-464
ISSN:
0233-111X
Subject:
Citrobacter freundii; chromium; detection limit; microbial carbon; microwave treatment; nitrogen; storage time
Abstract:
... Functionalized carbon dots (CDs) derived from Citrobacter freundii bacterial cells were used for selective detection of Cr(VI). A microwave‐heating‐based green synthesis approach is adopted to produce functionalized CDs from C. freundii bacterial cells (CF‐CDs). The reaction was carried out in a 500 W microwave digester at 200°C for 20 min. The supernatant was filtered with a 0.2 µm filter and hig ...
DOI:
10.1002/jobm.202100394

47. Cinnamomum camphora fruit peel as a source of essential oil extracted using the solvent-free microwave-assisted method compared with conventional hydrodistillation

Author:
Zaizhi Liu; Hualan Li; Zheng Zhu; Dai Huang; Yanlong Qi; Chunhui Ma; Zhengrong Zou; Hiyan Ni
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.153 pp. 112549
ISSN:
0023-6438
Subject:
Cinnamomum camphora; carbon dioxide; electricity; energy conservation; essential oils; experimental design; fruit peels; hydrodistillation; irradiation; mass transfer; microwave radiation; microwave treatment; oxygen; sustainable technology; wastes; water content
Abstract:
... In the present study, essential oil from Cinnamomum camphora fruit peel was first separated and characterized by GC-MS. Solvent-free microwave-assisted extraction (SFME) was performed to isolate the essential oil, and the extraction procedure was optimized using a Box–Behnken design. The optimum SFME conditions yielded 80.35 ± 1.88 mg/g of essential oil with 76% moisture content, using a microwave ...
DOI:
10.1016/j.lwt.2021.112549

48. Clean label extraction of bioactive compounds from food waste through microwave-assisted extraction technique-A review

Author:
Tayyaba Alvi; Zarnab Asif; Muhammad Kashif Iqbal Khan
Source:
Food bioscience 2022 v.46 pp. 101580
ISSN:
2212-4292
Subject:
air; energy; food waste; fruits; gravity; hydrodistillation; microwave treatment; solvents; steam; steam distillation; sustainable technology; vegetable residues
Abstract:
... Clean label and green extraction have attained popularity due to elimination of solvent use and reduction in energy consumption. In this regard, microwave assisted extraction have emerged as a novel process for extraction of bioactive compounds. This process observed to consume less time and energy but have higher extraction efficiency. Additionally, the functionality of bioactive compounds has no ...
DOI:
10.1016/j.fbio.2022.101580

49. Co-production of phenolic-rich bio-oil and magnetic biochar for phosphate removal via bauxite-residue-catalysed microwave pyrolysis of switchgrass

Author:
Badr A. Mohamed; Zhengyang Liu; Xiaotao Bi; Loretta Y. Li
Source:
Journal of cleaner production 2022 v.333 pp. 130090
ISSN:
0959-6526
Subject:
NPK fertilizers; Panicum virgatum; absorption; acidity; adsorbents; adsorption; bauxite; biochar; biofuels; catalysts; eutrophication; maghemite; magnetism; magnetite; microwave treatment; pH; phosphates; phosphorus; pyrolysis; soil fertility; sorption isotherms; wastewater
Abstract:
... Bauxite residue (BR) was tested as a low-cost microwave absorber and catalyst for microwave-assisted pyrolysis for producing phenolic-rich bio-oil, along with magnetic biochar that can be used as an adsorbent for capturing excess nutrients, such as phosphates, from eutrophic water or wastewater. Mixing BR alone with switchgrass (SG) did not enhance SG microwave absorption, while mixing 10 wt% clin ...
DOI:
10.1016/j.jclepro.2021.130090

50. Coal gasification fine slags: Investigation of the potential as both microwave adsorbers and catalysts in microwave-induced biomass pyrolysis applications

Author:
Yichen Dong; Songbo Mao; Feiqiang Guo; Rui Shu; Jiaming Bai; Lin Qian; Yonghui Bai
Source:
Energy 2022 v.238 pp. 121867
ISSN:
0360-5442
Subject:
biofuels; biomass; carbon; catalysts; chemical composition; coal gasification; energy; hydrogen; microwave treatment; pyrolysis; temperature
Abstract:
... The coal gasification fine slags (CGFS) are rich in porous carbon and various metal elements (Al, Fe, Ca, Na, K, Mg). In this work, three types of CGFS-based catalysts (CGFS@GSP, CGFS@OMB, and CGFS@TEX) were prepared and used in microwave-induced biomass pyrolysis to investigate the possibility of CGFSs as both microwave absorbing materials and catalysts for synergistic renewable phenols and fuel ...
DOI:
10.1016/j.energy.2021.121867