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1. A critical review on exploitation of agro-industrial biomass as substrates for the therapeutic microbial enzymes production and implemented protein purification techniques

Author:
Diksha Raina; Vinod Kumar; Saurabh Saran
Source:
Chemosphere 2022 v.294 pp. 133712
ISSN:
0045-6535
Subject:
biofuels; biomass; cellulose; drugs; feedstocks; fermentation; hemicellulose; lignin; paper; therapeutics; wastes
Abstract:
... Annually, a huge amount of waste is generated by the industries that use agricultural biomass. Researchers have looked into employing this cheap and renewable agro-biomass as a substrate for enzyme production via fermentation processes to meet the ever-increasing worldwide need. Although there are a number of sources for enzyme extraction, microbial sources have dominated industrial sectors due to ...
DOI:
10.1016/j.chemosphere.2022.133712

2. A review on contemporary approaches in enhancing the innate lipid content of yeast cell

Author:
M.A. Sundaramahalingam; P. Sivashanmugam; J. Rajeshbanu; Muthupandian Ashokkumar
Source:
Chemosphere 2022 v.293 pp. 133616
ISSN:
0045-6535
Subject:
biofuels; biorefining; biosynthesis; culture media; energy; environmental hazards; genetically engineered microorganisms; glycerol; industrialization; lipid content; phospholipids; wastes; yeasts
Abstract:
... For the past few decades, industrialization has made a huge environmental hazard to the world with its waste. The approach of waste to wealth in the recent era has made many Eco-economical suggestions for the industries. The valuable products in biorefinery aspects of the eco-economical suggestions include; energy products, high-value drugs and novel materials. Bio-lipids are found to be the major ...
DOI:
10.1016/j.chemosphere.2022.133616

3. 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

4. Acid functionalized hydrochar as heterogeneous catalysts for solventless synthesis of biofuel precursors

Author:
Tripti Chhabra; Prachi Dwivedi; Venkata Krishnan
Source:
Green chemistry 2022 v.24 no.2 pp. 898-910
ISSN:
1463-9270
Subject:
acetone; alkylation; biofuels; biomass; catalysts; catalytic activity; comparative study; desorption; furfural; green chemistry; hydrochars; hydrothermal carbonization; nitrates; phosphates; temperature; wastes
Abstract:
... Synthesis of biofuel precursors via the hydroxyalkylation alkylation reaction is one of the solutions to the problem of depletion of renewable energy resources. This work examines the preparation of hydrochar via hydrothermal carbonization from low-cost biomass waste. Hydrochar was functionalized with three different Brønsted acidic moieties, namely sulfonic, nitrate and phosphate, to prepare a se ...
DOI:
10.1039/d1gc03330a

5. Advances in bioconversion of spent tea leaves to value-added products

Author:
Taru Negi; Yogesh Kumar; Ranjna Sirohi; Shikhangi Singh; Ayon Tarafdar; Sunil Pareek; Mukesh Kumar Awasthi; Narashans Alok Sagar
Source:
Bioresource technology 2022 v.346 pp. 126409
ISSN:
0960-8524
Subject:
anaerobic digestion; aspirin; batteries; biochar; biofuels; biopolymers; biotransformation; caffeine; catechin; dyes; fermentation; insulating materials; nanocatalysts; peptides; rutin; silage making; tea; theaflavins; theobromine; value added; vermicomposting; wastes
Abstract:
... Spent tea leaves (STL) are generated after the extraction of liquor from processed tea leaves and are regarded as an underutilized waste. STL are rich in essential amino acids, ω-6 and ω-3 fatty acids, alkaloids (theobromine and caffeine), polyphenols (catechin, theaflavins and rutin) and minerals (Ca, P, K, Mg, Mn) that could be utilized for the production of industrially important products. Verm ...
DOI:
10.1016/j.biortech.2021.126409

6. Agro-forestry waste management- A review

Author:
Juhi Gupta; Moni Kumari; Arti Mishra; Swati; Mohd Akram; Indu Shekhar Thakur
Source:
Chemosphere 2022 v.287 pp. 132321
ISSN:
0045-6535
Subject:
Food and Agriculture Organization; agroforestry; biochar; bioeconomics; biofuels; fermentation; gasification; hydrolysis; life cycle assessment; market value; rural development; sustainable agriculture; transportation; waste management; wastes; world markets
Abstract:
... Agroforestry, an integration of farming system with woody perennials leads to the generation of potential agroforestry residues. The conventional treatment of agroforestry waste includes landfilling, thermal management, and decomposition which is accompanied with their own share of disadvantages. The ample amount of residues and products needs effective management to reap the economic and environm ...
DOI:
10.1016/j.chemosphere.2021.132321

7. Algal biopolymers as sustainable resources for a net-zero carbon bioeconomy

Author:
A. Aswathi Mohan; Aiswarya Robert Antony; Kozhumal Greeshma; Jin-Ho Yun; Rishiram Ramanan; Hee-Sik Kim
Source:
Bioresource technology 2022 v.344 pp. 126397
ISSN:
0960-8524
Subject:
algae; biocomposites; biodegradability; bioeconomics; biofuels; biomass; biopolymers; biorefining; biosynthesis; carbon; cost effectiveness; evolution; fossil fuels; polysaccharides; wastes
Abstract:
... The era for eco-friendly polymers was ushered by the marine plastic menace and with the discovery of emerging pollutants such as micro-, nano-plastics, and plastic leachates from fossil fuel-based polymers. This review investigates algae-derived natural, carbon neutral polysaccharides and polyesters, their structure, biosynthetic mechanisms, biopolymers and biocomposites production process, follow ...
DOI:
10.1016/j.biortech.2021.126397

8. Bio-fuel production from catalytic fast pyrolysis of Jatropha wastes using pyroprobe GC/MS and drop tube pyrolyzer

Author:
Prangtip Rittichote Kaewpengkrow; Duangduen Atong; Viboon Sricharoenchaikul
Source:
Journal of analytical and applied pyrolysis 2022 v.165 pp. 105574
ISSN:
0165-2370
Subject:
Jatropha; activated carbon; aldehydes; biochar; biofuels; catalysts; catalytic activity; coproducts; fuel production; liquids; pH; particle size; pyrolysis; temperature; vapors; wastes
Abstract:
... The effects of temperature and catalytic activity on the decomposition of Jatropha waste to bio-oil under rapid pyrolysis were investigated in this study. The pyrolytic conversion of Jatropha wastes was performed at the temperature range of 400–700 °C. The reactions were conducted and compared between two operations, an analytical pyroprobe GC/MS (µg-scale reactor) and a larger scale, drop tube py ...
DOI:
10.1016/j.jaap.2022.105574

9. Bio-modified rubberized asphalt binder: A clean, sustainable approach to recycle rubber into construction

Author:
Lei Lyu; Jianzhong Pei; Dongliang Hu; Guoqing Sun; Elham H. Fini
Source:
Journal of cleaner production 2022 v.345 pp. 131151
ISSN:
0959-6526
Subject:
adsorption; biofuels; biomass; bitumen; durability; roads; rubber; wastes
Abstract:
... This paper introduces a hybrid utilization of scrap tires and bio-oil made from biomass waste to create bio-modified rubberized asphalt for use in roadway construction. This in turn promotes clean and sustainable manufacturing while enhancing resource conservation and durability of pavements. The durability of pavements is impacted by the resistance of their asphalt binder to moisture damage and a ...
DOI:
10.1016/j.jclepro.2022.131151

10. Biochar production via pyrolysis of citrus peel fruit waste as a potential usage as solid biofuel

Author:
Anurita Selvarajoo; Yu Ling Wong; Kuan Shiong Khoo; Wei-Hsin Chen; Pau Loke Show
Source:
Chemosphere 2022 v.294 pp. 133671
ISSN:
0045-6535
Subject:
Citrus; Fourier transform infrared spectroscopy; biochar; biofuels; biomass; bulk density; carbon; citrus peels; energy density; energy-dispersive X-ray analysis; fruits; infrared radiation; pyrolysis; temperature; thermogravimetry; value added; wastes; water content; Malaysia
Abstract:
... Renewable energy sources such as biomass have been proven to be one of the promising sustainable alternatives to fossil fuels. However, using biomass directly as a fuel is less attractive due to its high moisture content, poor grindability, low bulk density, and low energy density nature. Hence biomass can be converted into biochar to overcome these challenges. In this study, biochar was derived f ...
DOI:
10.1016/j.chemosphere.2022.133671

11. Bioeconomy and green recovery in a post-COVID-19 era

Author:
Charis M. Galanakis; Gianluca Brunori; David Chiaramonti; Robert Matthews; Calliope Panoutsou; Uwe R. Fritsche
Source:
Science of the total environment 2022 v.808 pp. 152180
ISSN:
0048-9697
Subject:
COVID-19 infection; bioeconomics; biofuels; biorefining; ecosystems; energy; environment; socioeconomics; stakeholders; tourism; vaccination; wastes
Abstract:
... The spread of the COVID-19 pandemic has generated a health crisis and repetitive lockdowns that disrupted different economic and societal segments. As the world has placed hope on the vaccination progress to bring back the socio-economic “normal,” this article explores how the bioeconomy can enhance the resilience and sustainability of bio-based, food, and energy systems in the post-COVID-19 era. ...
DOI:
10.1016/j.scitotenv.2021.152180

12. Biohydrogen production from carob waste of the Lebanese industry by dark fermentation

Author:
Hajar Bahry; Rawa Abdallah; Benoit Chezeau; Agnès Pons; Samir Taha; Christophe Vial
Source:
Biofuels 2022 v.13 no.2 pp. 219-229
ISSN:
1759-7277
Subject:
biofuels; bioreactors; carob; fermentation; food industry; glass; glucose; hydrogen production; iron; nitrogen; pH; particle size; sucrose; wastes; Lebanon
Abstract:
... The aim of the present work is the study of the feasibility of a solid carob waste valorization from the Lebanese food industry using dark fermentation for a second-generation biohydrogen production. The preliminary experiments conducted in 125-mL glass bottles showed that the most effective initial pH was 6.0 and the highest hydrogen yield was 1.38 mol H₂/mol hexose consumed for sucrose, followed ...
DOI:
10.1080/17597269.2019.1669862

13. Biomass hydrothermal conversion under CO2 atmosphere: A way to improve the regulation of hydrothermal products

Author:
Wei Yi; Diweina Zheng; Xianhua Wang; Yingquan Chen; Junhao Hu; Haiping Yang; Jingai Shao; Shihong Zhang; Hanping Chen
Source:
Science of the total environment 2022 v.807 pp. 150900
ISSN:
0048-9697
Subject:
biofuels; biomass; carbon dioxide; cellulose; corn stover; crystal structure; environment; hydrochars; lignin; liquids; temperature; wastes
Abstract:
... In this study, batched hydrothermal experiments on corn stalk were conducted at 240–330 °C under CO₂ or inert (N₂) atmosphere. The distribution and characteristics of gaseous, solid, and liquid products were analyzed in detail to comprehensively investigate the effects of CO₂ on the hydrothermal conversion of biomass, especially on the cellulose and lignin in biomass. The results demonstrate that ...
DOI:
10.1016/j.scitotenv.2021.150900

14. Catalytic Copyrolysis of Sugarcane Leaves and Low-Density Polyethylene Waste to Produce Bio-Oil and Chemicals Using Copper-Doped HZSM-35

Author:
Witchakorn Charusiri; Naphat Phowan; Tharapong Vitidsant
Source:
Energy & fuels 2022 v.36 no.5 pp. 2639-2655
ISSN:
1520-5029
Subject:
biofuels; catalysts; copper; energy; feedstocks; gas chromatography-mass spectrometry; liquids; nitrogen; polyethylene; pyrolysis; sugarcane; synergism; temperature; wastes
Abstract:
... The effect of copyrolysis operating conditions, namely, temperature (500–650 °C), inert nitrogen flow rate (80–200 mL min–¹), reaction time (30–75 min), and copper metal-doped HZSM-35, was examined on the product distribution and compared when different mass ratios of sugarcane leaves (SCLs) and low-density polyethylene (LDPE) were pyrolyzed with different concentrations of copper (wt %) doped int ...
DOI:
10.1021/acs.energyfuels.1c04409

15. Catalytic microwave preheated co-pyrolysis of lignocellulosic biomasses: A study on biofuel production and its characterization

Author:
P. Jennita Jacqueline; V. Shenbaga Muthuraman; C. Karthick; Abed Alaswad; G. Velvizhi; K. Nanthagopal
Source:
Bioresource technology 2022 v.347 pp. 126382
ISSN:
0960-8524
Subject:
Fourier transform infrared spectroscopy; biofuels; calcium oxide; catalysts; energy density; fuel production; lignocellulose; nitrogen; oxygen; particle size; peanut hulls; pomegranates; pyrolysis; technology; temperature; wastes
Abstract:
... In this present study, microwave pre-treatment has been used for sustainable biofuel production from three different biowastes through catalytic aided co-pyrolysis techniques. The experimental investigations have been carried out to develop biofuel at temperature (350-550℃), heating rate (15-50℃/min) and particle size (0.12–0.38 mm). The resultant biofuels were characterized using TGA, DTA, FE-SEM ...
DOI:
10.1016/j.biortech.2021.126382

16. Characterization of Biobriquettes Produced from Vineyard Wastes as a Solid Biofuel Resource

Author:
Lacrimioara Senila; Ioan Tenu; Petru Carlescu; Daniela Alexandra Scurtu; Eniko Kovacs; Marin Senila; Oana Cadar; Marius Roman; Diana Elena Dumitras; Cecilia Roman
Source:
Agriculture (Basel) 2022 v.12 no.3 pp. -
ISSN:
2077-0472
Subject:
X-ray diffraction; agriculture; biofuels; biomass; carbon monoxide; charcoal; combustion; crystal structure; desulfurization; energy; lignin content; nitrogen oxides; pollutants; sulfur dioxide; temperature; thermal properties; thermogravimetry; value-added products; vineyards; wastes; wood
Abstract:
... The large amount of biomass waste generated by vineyard pruning causes many environmental concerns. The production of briquettes represents an alternative to obtaining a value-added product. The transformation of vineyard wastes into briquettes could produce a densified product having high energy potential. The study investigates the production and chemical, structural, and thermal characterizatio ...
DOI:
10.3390/agriculture12030341

17. Characterization of rheological properties and aging performance of bitumen modified by bio-oil from bamboo charcoal production

Author:
Haotong Lin; Qi Chen; Xue Luo; Yuqing Zhang; Kai Miao; Tan Li; Kaige Wang
Source:
Journal of cleaner production 2022 v.338 pp. 130678
ISSN:
0959-6526
Subject:
bamboos; biofuels; bitumen; brittleness; charcoal; distillation; liquids; petroleum; sulfoxides; temperature; wastes
Abstract:
... As a waste stream from charcoal production, the liquid bio-oil has not been properly used, leading to both environmental and economic issues. In this study, this deleterious waste was explored as a promising additive for petroleum-based bitumen. Raw bio-oil was pretreated through distillation under different temperature to remove undesirable components. The resulting medium and heavy bio-oil fract ...
DOI:
10.1016/j.jclepro.2022.130678

18. Chemical and Microstructural Characterization of Vanilla Waste Compounds (Vanilla planifolia, Jackson) Using Eco-Friendly Technology

Author:
Alberto Peña-Barrientos; María de Jesús Perea-Flores; Miguel Ángel Vega-Cuellar; Abelardo Flores-Vela; Mayra Beatriz Gómez-Patiño; Daniel Arrieta-Báez; Gloria Davila-Ortiz
Source:
Waste and biomass valorization 2022 v.13 no.1 pp. 271-286
ISSN:
1877-2641
Subject:
Vanilla planifolia; bioactive compounds; biofuels; biomass; biosorption; economic investment; encapsulation; energy industry; enzymatic hydrolysis; enzymes; hydrolysis; mass spectrometry; pectins; sustainable development; sustainable technology; toxicity; wastes; water treatment
Abstract:
... Vanilla is one flavoring of worldwide importance, its production demands time from sowing and also an economic investment, thus resulting the processed vanilla obtained as extracts with a yield of 3–5% and the remaining is deemed as waste. However, waste may be used to generate added-value products. Objective of this research was to chemically and microstructurally identify and evaluate the main c ...
DOI:
10.1007/s12649-021-01518-7

19. Co-pyrolysis of microalgae and other biomass wastes for the production of high-quality bio-oil: Progress and prospective

Author:
Guangcan Su; Hwai Chyuan Ong; Yong Yang Gan; Wei-Hsin Chen; Cheng Tung Chong; Yong Sik Ok
Source:
Bioresource technology 2022 v.344 pp. 126096
ISSN:
0960-8524
Subject:
aromatic compounds; bamboos; biofuels; biomass; calcium oxide; economic sustainability; microalgae; pyrolysis; technology; wastes
Abstract:
... Microalgae are the most prospective raw materials for the production of biofuels, pyrolysis is an effective method to convert biomass into bioenergy. However, biofuels derived from the pyrolysis of microalgae exhibit poor fuel properties due to high content of moisture and protein. Co-pyrolysis is a simple and efficient method to produce high-quality bio-oil from two or more materials. Tires, plas ...
DOI:
10.1016/j.biortech.2021.126096

20. Controlled Instant Pressure Drop (DIC) Pretreatment to Enhance Fractionation and Enzymatic Saccharification of Poppy Capsule Waste

Author:
Sibel Yağcı; Didem Sutay Kocabaş; Merve Köle; Hatice Neval Özbek
Source:
BioEnergy research 2022 v.15 no.1 pp. 426-438
ISSN:
1939-1234
Subject:
alkali treatment; biofuels; biomass; biorefining; enzymatic hydrolysis; fractionation; hemicellulose; hydrolysis; lignocellulose; research; saccharification; vapor pressure; wastes; water content; xylanases; xylooligosaccharides
Abstract:
... Lignocellulosic biomass is an important resource for biofuels, chemicals, and bioproducts; however, deconstructing its recalcitrant structure is a challenge. In this study, controlled instant pressure drop (DIC)-assisted alkaline pretreatment process of poppy capsule waste (PCW) was developed and statistically optimized with the aim of enhanced fractionation efficiency and production of fermentabl ...
DOI:
10.1007/s12155-021-10288-y