JOURNAL OF FOOD QUALITY
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2020
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IF 1.763
Ashok Biswas,Susmita Dey,Defang Li,Yi Liu,Jiangjiang Zhang,Siqi Huang,Gen Pan,Yong Deng
In addition to fiber, Corchorus (jute) leaf is also rich in secondary metabolites and is used in folk medicine in jute-producing communities. It has been reported that jute halts progression of and helps manage different chronic diseases like tumors, obesity, diabetes, and cardiovascular diseases. Various phytochemical, mineral, and antioxidant potency properties of 30 genotypes belonging to Corchorus capsularis and Corchorus olitorius were evaluated in the current study. The results demonstrate that the range of total flavonoids and polyphenols was 3.04 to 13.66 mg rutin equivalent (RE)/g and 5.12 to 7.78 mg gallic acid equivalent (GAE)/g DW, respectively. Total tannin and saponin content in both species was 13.08 to 26.95 mg tannic acid (TAE)/g and 34.45 to 114.59 mg tea saponin (TSE)/g DW, respectively, when analyzed for the first time. Moreover, this study sincerely establishes that jute leaf is a great source of mineral elements (magnesium, zinc, and selenium) and could also be a good energy source. The antioxidant properties of samples were examined with three unique strategies, including DPPH, FRAP, and ABTS values of leaf extract ranging from 206.42 to 351.77 μg/ml (IC50), 16.69 to 94.69 mmol Fe (II)/g DW, and 50.27 to 149.90 mmol trolox equivalent (TE)/g DW, respectively. A principle component analysis (PCA) explained 58.52% of the variance, while a hierarchical cluster analysis (HCA) was performed to construct five distinct groups based on their secondary compound metabolites content and antioxidant activities. Therefore, this study facilitates selection of the high genotypes that might be used as new materials for developing industrial and medicinal uses in addition to sorting genotypes for future genetic engineering purposes in order to enhance a particular bioactive compound and its natural antioxidants that are beneficial for human health.
研究领域:
植物学
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药理学
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营养学
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产品关联
DOI
高影响因子
Chemical and Biological Technologies in Agriculture
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2023
·Vol. 10
·期 1
·1-18
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IF 6.6
Biswas Ashok,Dey Susmita,Xiao Aiping,Deng Yong,Birhanie Ziggiju Mesenbet,Roy Rana,Akhter Delara,Liu Liangliang,Li Defang
Background Besides fibre production, Corchorus olitorius is considered a nutritional and medicinal plant in traditional medicine. Its leaves possess different antioxidant compounds and display various biological properties. This study optimized the ultrasound-assisted extraction (UAE) parameters like temperature, time, solvent concentration, and liquid–solid ratio for total flavonoids (TFC) and total polyphenols content (TPC) from leaves employing response surface methodology (RSM). Results Findings demonstrated that under the optimized conditions, the highest extraction yield of total flavonoids (7.17 mg QE/g DW) and total polyphenol content (13.92 mg GAE/g DW) were recorded with the ethanol concentration 70.92%, temperature 68.06 °C, liquid–solid ratio 48.80 mL/mg, and ultrasound irradiation time 37.20 min. The optimum value of TFC (6.96 mg QE/g DW) and TPC (13.38 mg GAE/g DW) from the experiment of verification of optimized conditions was close to the predicted value and significantly superior to the conventional heat reflux extraction (HRE). LC–MS and HPLC analysis of the optimized extract from UAE demonstrated the existence of six major phenolic compounds, including chlorogenic acid, isoquercetin, hyperoside, adhyperforin, 1,3-di- O -caffeoylquinic acid, and 3,4-di- O -caffeoylquinic acid. Furthermore, the antioxidant test of the UAE leaves extract revealed an excellent 2,2-diphenyl-1-picrylhydrazyl (DPPH•), 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS + •) and hydroxyl radical scavenging with IC 50 values of 226.29, 199.53 and 402.02 µg/mL, respectively, compared to HRE with 336.31 µg/mL, 253.86 µg/mL, 520.08 µg/mL. Conclusions The developed optimization method could contribute to the good recovery of natural antioxidants from C. olitorius in the pharmaceuticals and food industries. Graphical Abstract
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Jialing Tang,Xiaoli Qin,Ritva Repo-Carrasco-Valencia,Xiai Yang,Yanchun Deng,Chunsheng Hou,Xiushi Yang
Jute ( Corchorus olitorius L.) leaves have long been consumed as an edible vegetable in Asia and Africa, which are underexplored sources of bioactive polysaccharides. This study employed sequential solvent extraction (water, oxalate, acid, alkali) to isolate four novel polysaccharide fractions (WJP, OJP, HJP, AJP) and evaluated their structural, functional, and antioxidant properties. Polysaccharides were characterized for chemical composition, monosaccharide profile, molecular weight, and microstructure. Functional properties (oil/water holding, emulsification, rheology) and DPPH/ABTS scavenging activities were assessed against commercial citrus pectin (CP). All polysaccharide fractions were RG-I dominant with solvent-dependent features. WJP had the highest M w (3.30 × 10 6 Da) and viscosity; OJP showed peak emulsification linked to high DE (27.79 %); HJP exhibited superior emulsion stability from extensive branching; AJP contained abundant protein (12.70 %) and phenolics (59.46 mg GAE/g), driving exceptional antioxidant capacity. Functionally, jute leaf polysaccharides surpassed CP in OHC, WHC, and emulsification. Outperforming antioxidant activities of AJP and WJP correlated with protein-phenolic content and structural features. Solvent-directed sequential extraction yields jute polysaccharides with customizable functionality. OJP (emulsifier), WJP (thickener), and AJP/WJP (antioxidants) offer sustainable, high-performance alternatives to commercial hydrocolloids, contingent on further purification.
研究领域:
食品化学
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植物生物化学
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生物聚合物科学
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营养科学
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产品关联
DOI
PubMed
高影响因子
Heliyon
·
2023
·
IF 4
Ashok Biswas,Susmita Dey,Aiping Xiao,Siqi Huang,Ziggiju Mesenbet Birhanie,Yong Deng,Liangliang Liu,Defang Li
Different parts of Corchorus olitorius and C. capsularis possess different antioxidant compounds. This study investigated the phytochemical components and antioxidant capacities of ultrasound-assisted extraction of different plant parts of both species using spectrophotometry at various phenological stages. Results also indicate that leaves, stems and roots of C. olitorius at various growth stages showed higher phytochemical components and antioxidant potential compared to C. capsularis . The phytochemical components from roots to leaves in C. olitorius including total polyphenol 0.97–11.11 mg GAE/g DW, total flavonoid 0.99–7.78 mg QE/g DW and total tannin 4.02–26.89 TA E/g DW, whereas C. capsularis total polyphenol 1.04–7.93 mg GAE/g DW, total flavonoid 0.77–5.5.92 mg QE/g DW and total tannin content 3.17–22.73 TA E/g DW. C. olitorius produced overall 22.23%, 13.61%, 12.24% higher total polyphenol, total flavonoid and total tannin, respectively compare to C. capsularis. Different parts extract also significantly affected antioxidant capacities including DPPH, ABTS, and FRAP activity with values of 22.03–79.46% inhibition, 10.84–104.10 μmol TE/g DW, and 10.84–104.10 μmol Fe 2+/ g DW respectively for C. olitorius, while C. capsularis demonstrated 14.03–70.97% of DPPH inhibition, 9.16–95.60 μmol TE/g DW of ABTS and 5.31–71.82 μmol Fe 2+/ g DW of FRAP activity. Moreover, leaves of the flowering stage, young stems and aged roots of both species displayed a higher content of phytochemical and antioxidant activities than other growth stages. A positive correlation between the phytochemical and antioxidant potential indicated that phenolic constituents solely affected antioxidant activity. Thus, this study established that the plant's parts and phenological growth stages significantly influence the concentration of phytoconstituents and antioxidant activities, and determine the harvesting stages of the different organs of C. olitorius and C. capsularis for considerable medicinal importance as folk and industry.
研究领域:
植物学
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药理学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）