Frontiers in Microbiology
·
2022
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IF 6.064
Yang Zhengbin,Hu Yuedan,Wu Jiangli,Liu Jingui,Zhang Furong,Ao Hongya,Zhu Yong,He Laping,Zhang Wei,Zeng Xuefeng
Yellow slurry water is a kind of nutrient-rich wastewater of tofu. Firstly, the medium of yellow slurry was optimized. Then, APP40, APP60, and APP80 were obtained by sedimentation with different concentration of ethanol (40, 60, and 80%). The physicochemical properties and primary structures of the three polysaccharides were studied by high performance anion exchange chromatography (HPAEC), high performance gel filtration chromatography (HPGFC), scanning electron microscope (SEM), atomic force microscope (AFM), and Fourier transform infrared (FT-IR) spectrometer. Finally, the effects of three polysaccharides on antioxidation activity were studied. According to the experimental optimization the results, the biomass and the production of Auricularia polytricha Polysaccharides (APPS) reached the peak, and they were 13.5 ± .655 and 9.42 ± .253 g/L (p < .05). The SEM and the AFM showed that the height of APP80 gradually increased from 31.1 to 46.7 nm and from APP40 to APP80. The particle size of APP80 increased, the pores decrease or even disappear, and the molecules begin to aggregate. The FT-IR spectrum analysis showed that the three polysaccharides possessed key functional groups. The carbohydrate content of APP40, APP60, and APP80 was 20.2, 34.25, and 31.73%. The molecular weights of APP40, APP60, and APP80 are 9.462 × 104, 8.742 × 104, and 8.091 × 104 Da, respectively. The three polysaccharides were composed of rhamnose, galactose, glucose, mannose, and xylose but with different molar ratio. APP80 showed strong reducing ability and scavenging activity of 2,2–diphenyl–1–picrylhydrazyl (DPPH) and hydroxyl radicals through antioxidant activities evaluated in vitro. This study introduces a way for the effective use of yellow slurry water.
研究领域:
食品科学
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生物化学
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DOI
PubMed
高影响因子
Processes
·
2026
·Vol. 14
·期 6
·1017
·
IF 3.4
Jianxin Fu,Jing Wei,Tingxia Yan,Xing Zhu,Yuhang Chen,Zhenghong Hao
β-Carotene is widely utilized in food systems due to its biological activities, but exhibits poor chemical stability and low bioavailability. This study utilized wholeAuricularia polytricha(Mont.) Sacc. powder as a direct emulsifier to establish a natural emulsion-based delivery system designed to enhance the stability ofβ-carotene. Under optimal conditions, using 7%Auricularia polytricha(Mont.) Sacc. powder (120 μm) and 1% oil phase fraction, microscopic analysis revealed that emulsion droplets were small and uniformly distributed, resulting in excellent long-term stability. After UV irradiation, the degradation rate ofβ-carotene in the emulsion was significantly lower than that ofβ-carotene directly dispersed in the oil phase.In vitrosimulated digestion indicated thatβ-carotene retention in the intestinal phase reached 9.2% in the emulsion system, 1.2 ± 0.23% higher than in the conventional oil-dissolved system. This strategy offers a practical approach for the high-value utilization of this fungal resource, streamlining industrial processes and reducing production costs.
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2019
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IF 6.044
Yue Su,Liang Li
The structural characterization and antioxidant activity of four Auricularia polysaccharides (A.cornea ACP)、A.auricula(AAP)、A.polytricha (APP) and M.fungus(MFP)) were studied in this paper. The results shown: polysaccharides of four Auricularia were mainly composed of mannose and galactose, all polysaccharides contained uronic acid and pyran ring structure with spectroscopy and NMR analysis. There was a significant difference in the total antioxidant capacity and APP was significantly higher than the other polysaccharides. The ability of APP to scavenge DPPH radicals and hydroxyl radicals was significantly higher than that of other polysaccharides, respectively. The molecular weight was significantly positively correlated with DPPH radicals, superoxide anion radicals and hydroxyl radicals. Total antioxidant capacity was significantly negatively correlated with fucose and galactose. The result indicated that fucose and galactose jointly determine total antioxidant capacity. The polysaccharide from four Auricularia had good oxidation resistance and could be used as natural antioxidants.
研究领域:
生物化学
·
食品科学
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药理学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）