Standard D-(-)-quinic acid, L-(-)-malic acid, citric acid, chlorogenic acid, Folin–Ciocalteu's phenol reagent, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) were obtained from Sigma-Aldrich (Saint Louis, MO, USA). Methanol (high performance liquid chromatography grade) acetonitrile (LC-MS reagent) and water (LC-MS grade) were purchased from RCI Labscan Limited (Bangkok, Thailand). Formic acid (analytical grade) was purchased from JT Baker (Philipsburg, NJ, USA). A nylon syringe filter 0.45 μm was bought from Lubitech Technologies Ltd. (Shanghai, China). Muller-Hinton agar (MHA) and Muller-Hinton broth (MHB) were purchased from Difco Laboratories, Inc. (Difco, Franklin Lakes, NJ, USA).
1 1 diphenyl 2 picrylhydrazyl dpph 2 2 azino bis 3 ethylbenzothiazoline 6 sulfonic acid diammonium salt abts
Manufactured by Merck Group
Sourced in United States
1,1-diphenyl-2-picrylhydrazyl (DPPH) is a stable free radical compound used as a standard for evaluating antioxidant activity. 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) is a water-soluble cation radical compound used to measure the antioxidant capacity of various substances.
Automatically generated - may contain errors
Lab products found in correlation
Trolox, by Merck Group (2 mentions)
Acetonitrile lc ms reagent, by RCI Labscan (1 mentions)
Water lc ms grade, by RCI Labscan (1 mentions)
Folin ciocalteu s phenol reagent, by Merck Group (1 mentions)
L malic acid, by Merck Group (1 mentions)
Citric acid, by Merck Group (1 mentions)
Chlorogenic acid, by Merck Group (1 mentions)
Formic acid, by Avantor (1 mentions)
Methanol, by RCI Labscan (1 mentions)
Squalene, by Merck Group (1 mentions)
Vitamin e, by Merck Group (1 mentions)
Stigmasterol, by Merck Group (1 mentions)
3 4 dihydroxyphenylacetic acid, by Merck Group (1 mentions)
β amyrin, by Merck Group (1 mentions)
Quercetin, by Merck Group (1 mentions)
Rutin, by Merck Group (1 mentions)
Epicatechin, by Merck Group (1 mentions)
Folin ciocalteu, by Merck Group (1 mentions)
Gallic acid, by Merck Group (1 mentions)
3 protocols using 1 1 diphenyl 2 picrylhydrazyl dpph 2 2 azino bis 3 ethylbenzothiazoline 6 sulfonic acid diammonium salt abts
1
Antioxidant and Antimicrobial Evaluation
2
Camellia Species Seed Maturation Analysis
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A total of 40 Camellia spp. samples in seed maturation were provided by Prof. Kaibing Zhou in 2018 for this study, including 26 C. vietnamensis Huang varieties, 7 C. oleifera Abel., 2 C. osmantha, 1 C. gigantocarpa Hu et Huang, 1 C. chekiangoleosa, 1 C. gauchowensis, 1 C. fangchengensis S.Y. Liang et Y.C. Zheng, and 1 C. sinensis (L.) O. Ktze. Sample numbers are shown in Table 1 .
Squalene, vitamin E, stigmasterol, β-amyrin, 3,4-dihydroxyphenylacetic acid, epicatechin, tea saponin, rutin, quercetin, camellianin A standards, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), and Trolox were purchased from Sigma–Aldrich Chemical Co. Ltd. (Shanghai, China). Other reagents and solvents were obtained from Shanghai Macklin Biochemical Co. Ltd. (Shanghai, China).
Squalene, vitamin E, stigmasterol, β-amyrin, 3,4-dihydroxyphenylacetic acid, epicatechin, tea saponin, rutin, quercetin, camellianin A standards, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), and Trolox were purchased from Sigma–Aldrich Chemical Co. Ltd. (Shanghai, China). Other reagents and solvents were obtained from Shanghai Macklin Biochemical Co. Ltd. (Shanghai, China).
3
Antioxidant Activity Evaluation Methods
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Folin–Ciocalteu, trolox, gallic acid, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis (3-ethyl-benzothiazoline-6-sulfonic acid) diammonium salt (ABTS), nitroblue tetrazolium (NBT) chloride, N-methylphenazonium methyl sulfate (PMS), nicotinamide adenine dinucleotide (NADH) were purchased from Sigma Chemical Co. (St. Louis, MO, USA). Other analytical grades of methanol, ethanol, H2O2, FeSO4, K2S2O8 and salicylic acid were purchased from Tianjin Kemio Chemical Co. (Tianjin, China).
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