PMID- 37183919 OWN - NLM STAT- MEDLINE DCOM- 20230516 LR - 20230516 IS - 1940-4344 (Electronic) IS - 1940-4344 (Linking) VI - 25 IP - 5 DP - 2023 TI - Effects of the Extraction Solvents on Dissolution Rate and Antioxidant Capacity of Auricularia auricula (Agaricomycetes) Polysaccharides In Vitro and In Vivo. PG - 61-74 LID - 10.1615/IntJMedMushrooms.2023048033 [doi] AB - This paper reports the effects of solvents on the dissolution rate and antioxidant capacity of Auricularia auricula polysaccharides (AAPs). The ultra-low temperature combined with microwave extraction (UME) was used to compare the dissolution rates and molecular weights of AAPs using deionized water and deep eutectic solvents (DES) as solvents, respectively. Scanning electron microscope (SEM) was used to observe the effects of water extract (AAPs-FW) and DES extract (AAPs-FD) on the cell wall of A. auricula. The antioxidant capacity of polysaccharide extracts in vitro was assessed by using various methods (DPPH, ABTS, and hydroxyl radicals). In addition, in vivo oxidative stress was assessed using Caenorhabditis elegans models. The extract yield of AAPs varied among the extracts and was 19.58% +/- 0.56% in AAPs-FW. Whereas DES-UME increased the yield of polysaccharides (AAPs-FD) by 9.81% in the extraction medium containing triethylene glycol-choline chloride, under the optimum conditions of 60 min freezing time, 350 W, and 90 s microwave time. The microstructure of the cell wall shown by SEM was consistent with the results of polysaccharide yields. The molecular weights of AAPs-FW and AAPs-FD were found to be 398.107 kDa and 89.099 kDa, respectively. The results demonstrated that AAPs-FD exhibited potent radical scavenging activity against DPPH and a weaker scavenging ability for ABTS and OH radicals compared to AAPs-FW. In addition, both polysaccharide extracts increased the survival rate of C. elegans under methyl viologen induced oxidative stress at specific concentrations (p < 0.05), and the antioxidant capacity of AAPs-FD was higher than that of AAPs-FW at low concentrations (0.125 mg/mL). This indicated that both polysaccharides had a protective effect against damage induced by intracellular free radical generators (methyl viologen). FAU - Yao, Jing AU - Yao J AD - Liang Xin College, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China. FAU - Zeng, Jiang-Ying AU - Zeng JY AD - College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, P.R. China. FAU - Tang, Yu-Xuan AU - Tang YX AD - College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, P.R. China. FAU - Cheng, Yi-Rui AU - Cheng YR AD - College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, P.R. China. FAU - Li, Tian-Yuan AU - Li TY AD - Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province, 310018, P.R. China. FAU - Yang, Jun AU - Yang J AD - College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, P.R. China. FAU - Zhang, Yong-Jun AU - Zhang YJ AD - College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China. LA - eng PT - Journal Article PL - United States TA - Int J Med Mushrooms JT - International journal of medicinal mushrooms JID - 100886202 RN - 0 (Antioxidants) RN - 28752-68-3 (2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid) RN - 0 (Solvents) RN - PLG39H7695 (Paraquat) RN - 0 (Polysaccharides) RN - 059QF0KO0R (Water) RN - Auricularia auricula-judae SB - IM MH - Animals MH - *Antioxidants/pharmacology/chemistry MH - Solvents/pharmacology MH - Caenorhabditis elegans MH - Solubility MH - Paraquat/pharmacology MH - *Basidiomycota/chemistry MH - Polysaccharides/pharmacology/chemistry MH - Water EDAT- 2023/05/15 13:06 MHDA- 2023/05/16 06:42 CRDT- 2023/05/15 06:43 PHST- 2023/05/16 06:42 [medline] PHST- 2023/05/15 13:06 [pubmed] PHST- 2023/05/15 06:43 [entrez] AID - 3eb4f7215a4b8ea4,147680683708e1ee [pii] AID - 10.1615/IntJMedMushrooms.2023048033 [doi] PST - ppublish SO - Int J Med Mushrooms. 2023;25(5):61-74. doi: 10.1615/IntJMedMushrooms.2023048033.