文献类型：期刊文献

英文题名：Diversity of red, green and black cultivars of Chinese Toon [Toona sinensis(A. Juss.) Roem]: anthocyanins, flavonols and antioxidant activity

作者：Su, Shang[1] Wang, Lijin[2] Ni, Jianwei[1] Geng, Yonghang[1] Xu, Xinqiao[1]

第一作者：苏上

通信作者：Xu, XQ[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Forestry Adm, Key Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China;[2]Beijing Technol & Business Univ, Coll Food & Chem Engn, Lab Mol Sensory Sci, Beijing 100048, Peoples R China

年份：2020

卷号：14

期号：6

起止页码：3206-3215

外文期刊名：JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000551009900001)】；

基金：This study was supported by the National Natural Science Foundation of China [Grant No. 31700603], the Central Public-interest Scientific Institution Basal Research Funds [Grant No. CAFYBB2017QA004] and the Southeast Guizhou Forestry Research Funds [Grant No. C078].

语种：英文

外文关键词：Toona sinensis; Cyanidin; Quercetin; Kaempferol; Antioxidant activity; HPLC

摘要：Young buds ofToona sinensis(A. Juss.) Roem with abundant flavonoids have aroused considerable attention for their health benefits. In this study, the diversity of anthocyanins (two cyanidin glycosides) and flavonols (11 quercetin and kaempferol derivatives) of five dominant cultivars ofT. sinensiswere analysed using HPLC-DAD and HPLC-ESI-MS/MS, and their antioxidant activities were evaluated with DPPH, FRAP and ORAC assays. Results showed that these characteristics were significantly cultivar-dependent (P < 0.05). By hierarchical cluster analysis, cultivars 'Red Toon' and 'Chaigouzi' with red buds were classified together for their high levels of total anthocyanins (TAC, respective averages of 155.82 +/- 9.72 and 73.12 +/- 1.56 mg/100 g), total flavonols (TFC, 1,206.34 +/- 61.27 and 1003.01 +/- 33.49 mg/100 g), and antioxidant activity (average DPPH values of 539.74 +/- 21.34 and 546.97 +/- 27.28 mg/100 g; FRAP: 439.44 +/- 34.98 and 411.12 +/- 17.24 mg/100 g; ORAC: 900.77 +/- 187.49 and 521.96 +/- 64.36 mu M/g); 'Green Toon' with green buds was clustered alone due to its relatively low levels of TAC (2.71 +/- 0.05 mg/100 g), TFC (563.45 +/- 24.49 mg/100 g) and antioxidant activity (DPPH: 506.39 +/- 4.04 mg/100 g; FRAP: 250.38 +/- 18.47 mg/100 g; ORAC: 384.60 +/- 15.32 mu M/g). All results suggest that buds ofT. sinensisare valuable natural antioxidant sources, and intuitively, the red buds are more desirable. In addition, cyanidin 3-O-neohesperidose, cyanidin 3-O-rutinoside, kaempferol 3-O-rutinoside, quercetin 3-O-xyloside and kaempferol 3-O-galactoside were firstly detected inT. sinensis.