2 2 diphenyl 1 2 4 6 trinitrophenyl hydrazyl

Cassia seeds were obtained from a market in Ya’an, China and dried at a temperature of 45 °C for two days. Subsequently, the dried Cassia seeds were ground to pass through a 60 mesh sieve and stored at −20 °C for further analysis.
Trifluoroacetic acid, rhamnose, glucuronic acid, galacturonic acid, mannose, glucose, galactose, xylose, arabinose, m-hydroxydiphenyl, griess reagent, sodium nitroprusside (SNP), 1-phenyl-3-methyl-5-pyrazolone (PMP), 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), hydrogen peroxide, vitamin C, and butylated hydroxytoluene (BHT) were purchased from Sigma-Aldrich (St. Louis, MO, USA). All other reagents and chemicals used were of analytical grade.

The fruiting body of D. indusiata was bought from the local supermarket in Ya’an, China. The sample was dried, grounded, and sieved through a 60-mesh screen. The powders were stored at −20 °C before use. Carboxymethyl cellulose (CM-cellulose), cholesterol, sodium deoxycholate, sodium taurocholate, sodium glycocholate, sodium cholate, oleic acid, 1-phenyl-3-methyl-5-pyrazolone (PMP), monosaccharide standards, Griess reagent, 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl (DPPH), and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) were obtained from Sigma-Aldrich (Sigma, St. Louis, MO, USA). A free cholesterol assay kit was obtained from Solarbio (Solarbio, Beijing, China).

The flower of snow chrysanthemum (C. tinctoria) was purchased from a local market in Ya’an, China. Samples were dried at the temperature of 45 °C for 2 days. Subsequently, the samples were ground to pass through a 60 mesh sieve and stored at −20 °C for further analysis.
Trifluoroacetic acid, rhamnose (Rha), mannose (Man), glucuronic acid (GlcA), galacturonic acid (GalA), glucose (Glc), galactose (Gal), xylose (Xyl), arabinose (Ara), 1-phenyl-3-methyl-5-pyrazolone (PMP), m-hydroxydiphenyl, griess reagent, sodium nitroprusside (SNP), 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), vitamin C, butylated hydroxytoluene (BHT), and 6-hydroxy-2,5,7,8-tetramethyl chroman-2-carboxylic acid (Trolox) were purchased from Sigma-Aldrich (St. Louis, MO, USA). All other reagents and chemicals used were of analytical grade.

Peaches (Prunus persica cv. Yanhong) were purchased from an orchard situated in Yaodu District, Linfen City, Shanxi Province. The fruits were picked at commercial mature stage. Peaches with uniform shape, size, and color, as well as no insect pest and mechanical damage, were selected and quickly transported to the laboratory of Shanxi Normal University in open cartons.
CO gas with a purity of 99.99% was purchased from Beijing Huaneng Special Gases Co., Ltd. (Beijing, China). Oxalic acid, gallic acid, rutin, potassium ferricyanide, trichloroacetic acid, and sodium hydroxide (analytical grade) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Analytical-grade 1,1-diphenyl-2-picrylhydrazyl radical, 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl, and 2,6-dichloroindophenol were purchased from Sigma (USA). Other reagents of analytical grade were purchased from Alfa Aesar Company (Tianjin, China).

Different chrysanthemum teas, including C. tinctoria (snow chrysanthemum tea), C. indicum, C. morifolium ‘Huangju’, C. morifolium ‘Gongju’, and C. morifolium ‘Hangbaiju’, were purchased from a local market in Ya'an, China. Chrysanthemum teas were dried at the temperature of 45 °C for 2 days, and then the dried samples were ground to pass through a 60 mesh sieve, and stored at −20 °C for further analysis.
Trifluoroacetic acid, monosaccharide standards (rhamnose, mannose, glucuronic acid, galacturonic acid, glucose, galactose, xylose and arabinose), 1-phenyl-3-methyl-5-pyrazolone (PMP), hydrogen peroxide (H₂O₂), m-hydroxydiphenyl, griess reagent, vitamin C, sodium nitroprusside (SNP), 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), butylated hydroxytoluene (BHT), 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl (DPPH), sodium azide, bovine serum albumin (BSA), and aminoguanidine were purchased from Sigma-Aldrich (St. Louis, MO, USA). All other reagents and chemicals used were of analytical grade.