Abstract
Calocybe indica has been considered an essential herb, exhibiting a strong antioxidant capability. To this point, the phenolic compounds could be the primary constituent inducing such high activity. However, the phenolic-antioxidant activity correlation still needs to be understood. This study attempted to shed light on the direct linkage between phenolic compounds and antioxidant activity of the Vietnam-grown Calocybe indica for the first time. It turns out that the total amount of phenolic content is 97.67 μg/g, which is exceptionally high in the methanol extract. Gallic acid, quercetin, quercitrin, and hesperidin account for 49.02 ± 0.18 μg/g, 15.36 ± 0.24, 18.71 ± 0.32, and 14.58 ± 0.28 μg/g of such activity, respectively. Such antioxidants result in an extraordinary performance in DPPH and ABTS evaluations. Indeed, the total antioxidant capacity ranges from 59.67±0.78 to 91.26±1.57 mg GA/g or from 75.25±0.32 to 88.17±0.64 μmol AS/g, corresponding to the contents of phenolics from 24.92 ±0.24 to 35.28 ± 0.33 mg GAE/g. Furthermore, flavonoid compounds have been quantified to range from 14.63 ± 0.17 to 23.88 ± 0.10 mg QUE/g. These results imply the prominence of Calocybe indica for biomedical applications.
[http://dx.doi.org/10.1016/j.foodchem.2017.09.149] [PMID: 29146352]
[http://dx.doi.org/10.3390/nu10101498] [PMID: 30322118]
[http://dx.doi.org/10.1111/1541-4337.12602] [PMID: 33336985]
[http://dx.doi.org/10.1007/s00217-020-03646-1]
[http://dx.doi.org/10.1615/IntJMedMushrooms.v16.i6.50] [PMID: 25404220]
[http://dx.doi.org/10.5941/MYCO.2015.43.3.184] [PMID: 26539033]
[http://dx.doi.org/10.1016/j.etp.2016.04.001] [PMID: 27174669]
[http://dx.doi.org/10.1016/j.jbiosc.2018.04.010] [PMID: 29773477]
[http://dx.doi.org/10.3390/antiox11091694] [PMID: 36139769]
[http://dx.doi.org/10.1016/j.ijbiomac.2010.12.003] [PMID: 21145916]
[http://dx.doi.org/10.1016/j.ijfoodmicro.2022.109741] [PMID: 35671594]
[http://dx.doi.org/10.1016/j.ijbiomac.2017.09.002] [PMID: 28870747]
[http://dx.doi.org/10.1002/ejlt.201800319]
[http://dx.doi.org/10.1038/s41598-017-08024-8] [PMID: 28790397]
[http://dx.doi.org/10.1016/j.biopha.2017.05.008] [PMID: 28577496]
[http://dx.doi.org/10.3390/nu11040783] [PMID: 30987366]
[http://dx.doi.org/10.1002/jsfa.8734] [PMID: 29023808]
[http://dx.doi.org/10.1007/s00210-020-01843-z] [PMID: 32103295]
[http://dx.doi.org/10.1039/C9RA05664E] [PMID: 35528580]
[http://dx.doi.org/10.1016/j.lfs.2021.119420] [PMID: 33785340]
[http://dx.doi.org/10.1016/j.intimp.2017.09.022] [PMID: 28963941]
[http://dx.doi.org/10.1016/j.phrs.2019.104346] [PMID: 31295570]
[http://dx.doi.org/10.1186/s13578-020-00397-0] [PMID: 32175075]
[http://dx.doi.org/10.1007/s11010-011-0927-x] [PMID: 21713411]
[http://dx.doi.org/10.3390/nu8070431] [PMID: 27428996]
[http://dx.doi.org/10.1111/j.1472-8206.2007.00477.x] [PMID: 17868207]
[http://dx.doi.org/10.1179/135100010X12826446921509] [PMID: 21062537]
[http://dx.doi.org/10.3390/ijms160818384] [PMID: 26262610]
[http://dx.doi.org/10.3390/molecules23030695] [PMID: 29562699]
[http://dx.doi.org/10.1016/j.fct.2010.02.034] [PMID: 20197077]
[http://dx.doi.org/10.1111/fcp.12451] [PMID: 30720886]
[http://dx.doi.org/10.1016/j.foodchem.2004.01.036]
[http://dx.doi.org/10.1016/j.indcrop.2012.02.006]
[http://dx.doi.org/10.1016/S0963-9969(02)00116-3]
[http://dx.doi.org/10.1007/s12649-018-0416-5]
[http://dx.doi.org/10.1016/j.lwt.2015.03.109]
[http://dx.doi.org/10.3390/molecules17043653] [PMID: 22450678]
[http://dx.doi.org/10.1007/s12161-008-9067-7]
[http://dx.doi.org/10.1007/s13197-011-0338-8] [PMID: 24425920]
[http://dx.doi.org/10.1021/jf035331k] [PMID: 15740069]
[http://dx.doi.org/10.2174/1570178615666180328160929]
[http://dx.doi.org/10.1016/j.talanta.2006.03.050] [PMID: 19071293]
[http://dx.doi.org/10.1007/BF01202507]
[http://dx.doi.org/10.1016/S0731-7085(03)00303-0] [PMID: 14623578]
[http://dx.doi.org/10.1016/j.foodchem.2005.07.058]
[http://dx.doi.org/10.3390/ijms12042112] [PMID: 21731430]
[http://dx.doi.org/10.1016/j.foodchem.2010.01.059]
[http://dx.doi.org/10.1016/S0891-5849(98)00315-3] [PMID: 10381194]
[http://dx.doi.org/10.1155/2021/8860776] [PMID: 34094615]