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... The efficacy of red onion peel methanol extract to prevent dry rot in potato tubers caused by Fusarium sambucinum was investigated. At 20 mg mL⁻¹, the methanol extract caused a great decrease in the fungal growth and spore germination by 86.3 %, and 91.2 %, respectively. Also, the dry rot control efficacy in potato slices inoculated with F. sambucinum reached 91.8 % at the same concentration. The ...
benzyl alcohol; black tea; color; flavor; food chemistry; gas chromatography-mass spectrometry; glucosides; green tea; heat treatment; ingredients; juices; liquid state fermentation; odors; phenylethyl alcohol; sensory evaluation
Abstract:
... The effects of β-glucosidase on the volatile profiles and aroma stability of black tea juice were evaluated using gas-chromatography-mass spectrometry coupled with sensory analysis. During liquid fermentation of tea leaves, the addition of β-glucosidase increased the concentration of aldehydes, strengthening the undesirable “green grassy” odour. However, the “green grassy” odour was counteracted b ...
Symplocos; fruit extracts; glucosides; plant biochemistry; spectroscopy
Abstract:
... Two new acylated secoiridoid glucosides, designated symplolucidins A and B, were isolated from the fruit extract of Symplocos lucida (Thunb.) Siebold & Zucc. Their structures, including their absolute configurations, were elucidated by extensive spectroscopic analyses and chemical reactions. They were found to exhibit β-glucuronidase inhibitory effect. ...
... Balanced feeding to livestock can effectively convert the non‐edible forage crops into human food. Balanced output and input feeding systems further will result in greater animal health and production outcomes, with greater capacity to support growing global food demands. It also positively impacts the global economy and livelihood support of those entirely depending on livestock rearing. In gener ...
... A voltammetric study of a series of alkyl and aryl S-glucosides unveiled the reactivity patterns of alkyl S-glucosides toward anodic oxidation and found noteworthy differences with the trends followed by aryl derivatives. The oxidation potential of alkyl S-glucosides, estimated herein from square-wave voltammetry peak potentials (Eₚ), depends on the steric properties of the aglycone. Glucosides su ...
... A new bioactive naphthalene glucoside, named neanoside C (1), was isolated from the aerial part of Neanotis wightiana. The structure of neanoside C (1) was elucidated as 1,4-dihydroxy-2-(6′-Omethylglucopyranosyloxymethyl)-naphthalene-3-vinyloxyglucopyranoside by interpretation of the spectroscopic data, including 2D NMR and chemical studies. Neanoside C (1) was further subjected to screening for a ...
... European plum (Prunus domestica L.) is a tree cultivated in many countries for its edible fruits, and necessarily certain amounts of useless woody residues are generated every year during pruning works. The objectives of this research were to recover the phenolics present on that wood wastes and study their antimicrobial and antibiofilm activities against a selection of foodborne microorganisms, i ...
Vida Šimat; Danijela Skroza; Giulia Tabanelli; Martina Čagalj; Federica Pasini; Ana María Gómez-Caravaca; Carmen Fernández-Fernández; Meta Sterniša; Sonja Smole Možina; Yesim Ozogul; Ivana Generalić Mekinić
... Phenolic profiles, antioxidant, and antimicrobial activities of hydroethanolic olive leaf extracts from six Mediterranean olive cultivars (Croatian: Lastovka, Levantinka, Oblica; Italian: Moraiolo, Frantoio, Nostrana di Brisighella) were investigated. As expected, various distributions of phenolic levels were observed for each cultivar and the total phenolic content showed high variability (rangin ...
... Passiflora species are widely used in folk medicine due to their sedative and anxiolytic activities; however, scientific studies also showed different biological activities (antioxidant, anti-inflammatory, antidiabetic and antimicrobial). The present study aimed to characterize the phytochemical profile of P. cincinnata hydroethanolic extract, evaluate its antioxidant and antiglycation activities ...
... Soy isoflavones (SIs) show various health benefits, such as antioxidant and estrogenic effects. It is important to understand the bioaccessibility and bioavailability of SIs due to the close relation to their bioactivities. In this study, the antioxidant capacity, bioaccessibility, and bioavailability of 12 SIs were evaluated using radical-scavenging methods, simulations of human digestion, and Ca ...
... Phytochemical investigation of the leaves and bark of Salix babylonica L. trees yielded 11 compounds; catechol (1), methyl trans-4-hydroxycinnamate (2), luteolin (3), apigenin-7-O-β–d-(4″-p-coumaroyl) glucoside (4), populoside B (5), salicin (6), luteolin-7-O-β-d-glucoside (7), catechin (8), acmophyllin B (9), 1-O-p-coumaroyl-β-d-glucopyranoside (10) and chrysoeriol-7-O-β-d-glucuronyl methyl ester ...
... This research aimed to investigate an approach to processing more bioavailable chickpea milk by combining enzymolysis and probiotic bacterial fermentation. The regression model of three factors was established using Box–Behnken design (BBD), and the optimum technology of enzymolysis of isoflavone in specimens was determined. Moreover, the variations in isoflavone concentrations in chickpea milk pr ...
... Rhamnus alaternus (Rhamnaceae) has been used as a laxative, purgative, diuretic, antihypertensive, and depurative. However, few scientific research studies on its antimelanoma activity have been reported. This study aimed to investigate the in vitro antimelanoma effect of an enriched total oligomer flavonoid (TOF) extract, from R. alaternus, and to identify its phytochemical compounds. The chemica ...
... This research work prospects the phytochemical and biological properties of different polarity solvent (methanol, ethyl-acetate, n-hexane, and n-butanol) extracts of Trianthema triquetra Rottler & Willd. The assessment of chemical profile was done by ascertaining total bioactive contents and UHPLC-MS analysis. Similarly, biological profile was analyzed via determination of antioxidant (DPPH, ABTS, ...
... Eleven undescribed and three known pterocarpans were isolated and identified from the traditional Chinese medicine “Huang-qi”, Astragali Radix (the root of Astragalus membranaceus var. mongholicus (Bunge) P.K.Hsiao). The structures of these pterocarpans were determined using spectroscopic, X-ray crystallographic, quantum chemical calculation, and chemical methods. Pterocarpans, almost exclusively ...
... Fisetin (7,3',4'-flavon-3-ol) is a flavonol found in plants, fruits, and vegetables. It exhibits diverse biological activities, including antioxidant, anti-inflammatory, and anti-cancer effects. However, the low water solubility and bioavailability of fisetin restrict its pharmaceutical applications. In this work, we synthesized a novel fisetin-4'-O-α-D-glucopyranoside (FST-G1) using transglucosyl ...
antineoplastic activity; biocompatibility; bioprocessing; biotechnology; cosmetics; drugs; fermentation; food service; glucose; glucosides; glycerol; health services; hydrolases; hygroscopicity; markets; salt tolerance; sweetness; water holding capacity
Abstract:
... Glucosylglycerols (GGs) are a group of functional heterosides comprising glycerol and glucose. In nature, they are mainly produced by many moderately salt-tolerant cyanobacteria as compatible solutes in a salt-dependent manner and synthesized in a few higher plants and fermentation processes. Because of their many interesting physicochemical properties and biological activities, such as low sweetn ...
Bacillus amyloliquefaciens; biocatalysts; biosynthesis; cytotoxicity; glucosides; humans; neoplasm cells; nuclear magnetic resonance spectroscopy; quercetin; research; water solubility
Abstract:
... Quercetin (1) was converted into quercetin 7-O-succinyl glucoside (2) by used Bacillus amyloliquefaciens FJ18 as a solvent-resistant whole-cell biocatalyst. The structure of the new compound was confirmed by LC-MS analysis and NMR spectroscopy. The water-solubility of this novel quercetin 7-O-succinyl glucoside (2) was approximately 1000 times higher than that of native quercetin (2). Quercetin (1 ...
... Two new sucrose derivatives, named as cannadica A (1) and cannadica B (2), and eight known compounds, 6′-O-acetyl-3-O-(E)-p-coumaroylsucrose (3), heterophylloside C (4), 6′-O-vanilloylarbutin (5), isotachioside (6), 2,6-dimethoxy-p-hydroquinone 1-O-β-D-glucopyranoside (7), 3,5-dimethoxy-p-hydroquinone 1-O-β-D-glucopyranoside (8), benzyl glucoside (9), and 3,4-dihydroxybenzaldehyde (10) were isolat ...
... This study determined the composition and content of anthocyanin compounds in red-fleshed ‘Kanghong’ (KH) berries and wine and revealed the anthocyanin biosynthesis pathway in KH flesh. The 41 anthocyanin compounds detected primarily accumulated in KH skin, followed by flesh and seeds. Anthocyanin compounds with a single glucoside, particularly malvidin-3-O-glucoside, were the most abundant compon ...
... Hydrophilic-lipophilic deviation (HLD) concept describes interaction of surfactant, oil, and water in liquid formulations. Within the framework of HLD, this study investigated the behavior of microemulsion consisting of fragrance/essential oil mixtures and surfactants mixture commonly found in consumer products. Strong non-ideal mixing behavior was seen in oil mixtures of fragrance raw materials. ...
Pelargonium sidoides; bronchitis; centrifugation; common cold; coumarin; flavonoids; glucosides; mass spectrometry; methanol; nucleotides; polyphenols; sonication; spectrometers; ultrasonics; South Africa
Abstract:
... INTRODUCTION: Pelargonium sidoides is a member of the Geraniaceae family and it originates from the coastal regions of South Africa. In the last decades, Pelargonium sidoides root has been subjected to several surveys due to the assertion of its health benefits, such as the relief of symptoms of acute bronchitis, common cold and acute rhinosinusitis. Many studies have been conducted to reveal its ...
Dinh Xuan Doan; Sijia Sun; Ashraf M. Omar; Dong Thuong Nguyen; Anh Le Tuan Hoang; Hironori Fujiwara; Kinzo Matsumoto; Hang Thi Nguyet Pham; Suresh Awale
... Phytochemical investigation of a methanolic extract of Sedum sarmentosum collected from Vietnam resulted in the isolation of a new megastigmane glucoside, named sedumoside K (1), together with 17 previously reported compounds (2–18). Structural elucidation of the new compound was achieved by HRFABMS, NMR spectroscopic analysis, acid hydrolysis and quantum ECD calculations. The absolute configurati ...
... Systematic phytochemical investigation of the bark and leaves of Betula alba was independently conducted. A new cyclic diarylheptanoid glucoside (1), five diarylheptanoids (2–6), a phenylethanoid (7), a methyl salicylate glycoside (8), a dihydrobenzofuran glucoside (9), an arylbutanoid glycoside (10), two lignan glycosides (11 and 12), a flavanone glucoside (13), and a triterpene (14) were isolate ...
... Phytochemical investigation of the aerial parts of Laggera pterodonta (DC.) Benth. led to the isolation of twenty-one compounds (1–21), including nine sesquiterpenoids (1–9), four flavonoids (10–13), four triterpenoids (14–17) and four glucosides (18–21). This is the first report of isolation of compounds 17 and 21 from Laggera genus and compounds 18–20 within the Asteraceae family. The chemophene ...
Nguyen Huu Toan Phan; Nguyen Thi Dieu Thuan; Nguyen Thi Thu Hien; Pham Van Huyen; Tran Thi Hong Hanh; Tran Hong Quang; Nguyen Xuan Cuong; Nguyen Hoai Nam
... Phytochemical investigation of the branches and leaves of Alchornea annamica led to isolation of ten secondary metabolites, including two new megastigmane glucosides alnamicosides A (1) and B (2). The structure elucidation was confirmed by 1 D and 2 D NMR, ECD as well as HR-QTOF-MS experiments. The megastigmane derivatives 1 − 3 exhibited inhibitory effects on LPS-induced NO production in RAW264.7 ...
... From the stem bark of Entandrophragma angolense, six undescribed compounds were isolated, including seco-tirucallane type triterpenoids, limonoids, and a catechin glucoside, along with nineteen known structures. All structures were determined by interpretation of spectroscopic and HRMS data, and absolute configuration was confirmed with the aid of electronic circular dichroism. The isolated compou ...
... Polygonum multiflorum (PM), a popular functional food, and a herbal and dietary supplement, is widely used as a tonic in China and East Asia. In recent years, it has attracted great concern for its ability to cause idiosyncratic drug-induced liver injury (IDILI). However, identifying individuals susceptible to IDILI remains challenging. This is a prospective study. For 6 patients whose serum alani ...
... The antioxidant, anti-inflammatory and antibacterial activities of hesperetin, hesperidin and hesperidin glucoside with different solubility were compared in vitro. Hesperetin was prepared by enzymatic hydrolysis from hesperidin, and hesperidin glucoside composed of hesperidin mono-glucoside was prepared from hesperidin through enzymatic transglycosylation. Solubility of the compounds was differen ...
... Secondary compounds of fruit are among the essential concerns due to their positive effects on human health. Many studies have attempted to improve these compounds by applying different genotype or cultivation practices such as irrigation and fertilization. This study aimed to find out the effect of different harvest dates on strawberry genotypes in terms of total phenolic (TP), total antioxidant ...
... Zearalenone (ZEN), mainly produced by Fusarium species in many crops worldwide, is an estrogenic mycotoxin that causes reproductive disorders in livestock. In this study, we developed a different degradation mode by choosing specific microorganisms to catalyze directional reactions to produce less toxic or non-toxic target products. One promising strain, Candida parapsilosis ATCC 7330, with high r ...
... Cucurbitacins are highly oxygenated tetracyclic triterpenoids, that represent the major metabolites reported from C. colocynthis (L.) Schrad.. Cucurbitacin E glucoside (CuE) is a tetracyclic triterpene glycoside separated from Cucurbitaceae plants. CuE has potent anti-inflammatory, immunomodulatory, and anti-tumor properties. The current study aimed at examining the hepatoprotective effect of CuE ...
... Picrorhiza kurroa in the Indian system of medicine is used to treat jaundice, fatty liver, diabetes and respiratory disorders. Quality control methods have been reported earlier for picrosides-I and II, but extended coverage of markers is required for reliable authenticity. Therefore, the present study is aimed to develop and validate a UHPLC-DAD method for concurrent estimation of picrosides (I−I ...
... Glycogen particles are branched polysaccharides composed of linear chains of glucosyl units linked by α-1,4 glucoside bonds. The latter are attached to each other by α-1,6 glucoside linkages, referred to as branch points. Among the different forms of carbon storage (i.e., starch, β-glucan), glycogen is probably one of the oldest and most successful storage polysaccharides found across the living w ...
... Yellow mealworm (Tenebrio molitor) is a supplementary protein source for food and feed and represents a promising solution to manage grain contaminated with Aflatoxin B₁ (AFB₁). In this study, AFB₁ present in different concentrations in wheat bran was treated and removed via bioconversion by yellow mealworm of different instars, with emphasis on the bioconversion performance and metabolism of AFB₁ ...
... To investigate the biosynthetic pathways and regulatory mechanisms of lignans in plants, the actual distributions of lignans and lignan glucosides in flash-frozen stems of Ginkgo biloba L. (Ginkgoaceae) were studied using cryo time-of-flight secondary ion mass spectrometry coupled with scanning electron microscopy (cryo-TOF-SIMS/SEM). Four lignans and four lignan glucosides were successfully chara ...
active sites; catalytic activity; enzymes; glucosides; hydrolysis; organic chemistry
Abstract:
... Enzymes use sophisticated conformational control to optimize the dynamics of their protein framework for efficient catalysis. Although it is difficult to employ a similar strategy to improve catalysis in a synthetic enzyme, we here report that modulation of the dynamics of the substrate in the active site is readily achievable in a complex between a molecularly imprinted nanoparticle and its acid ...
... Lignification of cellulose limits the effective utilisation of fibre in plant cell wall. Lignocellulose-degrading bacteria secrete enzymes that decompose lignin and have the potential to improve fibre digestibility. Therefore, this study aimed to investigate the effect of whole-plant corn silage inoculated with lignocellulose-degrading bacteria on the growth performance, rumen fermentation, and ru ...
... Alginate edible coatings enriched with quercetin glycosides and hydroxyapatite/quercetin complexes were evaluated as effective active coatings able to slow down the spoilage of fresh chicken fillets during the cold storage. Hydroxyapatite/quercetin complexes were preliminarily analysed by SEM, FTIR and zeta potential. Then alginate coatings were characterized for their ability to release quercetin ...
... A 10-week feeding trial was conducted to examine the effects of fishmeal (FM) substitution by different types of FSBM on growth performance, antioxidant capacity and inflammatory responses of turbot juveniles (Scophthalmus maximus L.). Four strains of microorganisms Saccharomycopsis fibuligera isolate Y27 (SF), Bacillus tequilensis KCTC 13622 (BT), Bacillus subtilis strain D7XPN1 (BS) and Bacillus ...
... The combination of the insufficient availability and the complex structure of siamenoside I (SI), the sweetest glucoside isolated from Siraitia grosvenorii to date, limited its use as a natural sweetener. To solve this problem, an improved biocatalyst, UGT-M2, was semi-rationally created by engineering the uridine diphosphate glycosyltransferase UGT94-289-2 from S. grosvenorii for the monoglucosyl ...
... Black soybeans contain high antioxidant compounds such as isoflavone but mainly in glucoside form, with low antioxidant activities. Fermentation by lactic acid bacteria (LAB) can enhance the antioxidant properties, but its ability is strain-dependent. This study aims to study the ability of Indonesian indigenous LAB, Lactiplantibacillus plantarum WGK 4, Streptococcus thermophilus Dad 11, and Lacti ...
2,2-diphenyl-1-picrylhydrazyl; Thermoanaerobacter; antioxidant activity; chemical structure; cyclomaltodextrin glucanotransferase; glucosides; nuclear magnetic resonance spectroscopy; reactive oxygen species; starch; technology; water solubility
Abstract:
... This study aimed to enhance the water solubility and antioxidant properties of mangiferin by transglucosylation using cyclodextrin glycosyltransferase (CGTase) from Thermoanaerobacter sp. The highest mangiferin to mangiferin glucoside conversion yield achieved was 88.9% using 60 mU/mL CGTase, 25 mM mangiferin, and 10% starch (w/v), with incubation at 60 °C for 10 h. The product of transglucosylati ...
... Sucrose phosphorylase (SPase) has a remarkable capacity to synthesize numerous glucosides from abundantly available sucrose under mild conditions but suffers from specificity and regioselectivity issues. In this study, a loop engineering strategy was introduced to enhance the regioselectivity and substrate specificity of SPase for the efficient synthesis of 2-O-α-D-glucopyranosyl-L-ascorbic acid ( ...
... PURPOSE: Okara is a solid waste of soybean-processed foods; it is normally used as a low-priced product, such as fertiliser and feed. An alternative method for the convertion of okara to valorized products is required. METHODS: This research employed Rhizopus azygosporus with fast-growing property to ferment bean dregs using solid-state fermentation technology and examined the functional compositi ...
... Raspberry anthocyanins were isolated and purified by XAD-7HP macroporous resin and silica gel column chromatography. Anthocyanins were then acylated with methyl salicylate as catalyzed by lipase under reduced pressure, and the conversion rate was 84.26%. LC-MS and NMR were used to identify the structure, and the stability, antioxidant capacity and protective ability of the acylated anthocyanins ag ...
... Isoflavonoids are of great interest due to their human health-promoting properties, which have resulted in studies on exploiting these phytochemicals as hotspots in diverse bio -industries. Biocatalytic glycosylation of isoflavonoid aglycones to glycosides has attracted marked interests because it enable the biosynthesis of isoflavonoid glycosides with high selectivity under mild conditions, and a ...
... Cold and drought stress are the most critical stresses encountered by crops and occur simultaneously under field conditions. However, it is unclear whether volatiles contribute to both cold and drought tolerance, and if so, by what mechanisms they act. Here, we show that airborne eugenol can be taken up by the tea (Camellia sinensis) plant and metabolized into glycosides, thus enhancing cold and d ...
density functional theory; glucose; glucosides; methanol; reaction mechanisms; value added
Abstract:
... The Fischer–Helferich glycosidation reaction is generally the initial step in the conversion of glucose to levulinate in alcohol media. However, the relevant molecular mechanism catalyzed by Al-based catalysts is still not well understood. In this work, the reaction mechanism of the glycosidation from glucose to methyl glycosides catalyzed by Al³⁺ coordinated with methanol/methoxyl was investigate ...
Berberis; Cousinia; Listeria monocytogenes; Origanum syriacum; Salvia fruticosa; Stachys; acetophenones; antibacterial properties; biodiversity; chemical constituents of plants; cytotoxicity; discoloration; diterpenoids; ethanol; flavonoids; flora; glucosides; glycemic effect; human cell lines; indigenous species; methylene chloride; phytosterols; polysaccharides; rheumatoid arthritis; therapeutics; traditional medicine; triterpenoids; Lebanon
Abstract:
... The Lebanese flora is known for its biodiversity and high rate of endemism. The data found in the literature between January 2010 and October 2021, about the extracts and essential oils of Origanum ehrenbergii Boiss., Origanum syriacum L., Stachys nivea Labill., Stachys ehrenbergii Boiss., Cousinia libanotica DC., Salvia fruticosa Miller and Berberis libanotica C.K. Schneider, were gathered. These ...