首页|Nutritional value and antioxidant activity of Chinese black truffle (Tuber indicum) grown in different geographical regions in China
Nutritional value and antioxidant activity of Chinese black truffle (Tuber indicum) grown in different geographical regions in China
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NSTL
Elsevier
Nutritional and health-promoting properties of Tuber indicum are still unclear. In this study, total phenol content (TPC) and total flavonoid contents (TFC) were determined by colorimetric methods; free phenolic acids, vitamin D-2 and ergosterol content were determined by HPLC; antioxidant activity were evaluated using ABTS, DPPH, and FRAP assays; in vitro anti-inflammatory activity was evaluated by protease inhibitory assay. Our results indicated that geographical origin exhibits a significant impact on the nutritional and pharmaceutical properties of Tuber indicum. The samples collected from Sichuan present significant higher proteins (23.2 g/100 g dw), ash (6.38 g/100 g dw), 1,3:1,6-beta-glucan (14.7 g/100 g dw) and ergosterol content (0.76 mg/g dw); whereas the samples collected from Yunnan present the highest amount of pectin (4.52 g/100 g dw), food energy (345.20 kcal/100 g dw), TPC (1.53 mg GAE/g dw), TFC (1.66 mg CAE/g dw) and the highest ABTS and DPPH values, and potent anti-inflammatory effects. In addition, the samples collected from Jilin presented the highest amount of total carbohydrate (51.7 g/100 g dw), reducing sugar (7.3 g/100 g dw) and total phenolic acids (66.76 mu g/g dw). These results will enhance current knowledge about nutritional values, chemical compositions, and biological properties of T. indicum.
Tuber indicumChinese black truffleNutrientsBioactive compoundsAntioxidant activityAnti-inflammatory activity
Wu, Ziyuan、Meenu, Maninder、Xu, Baojun
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BNU HKBU United Int Coll, Food Sci & Technol Program, 2000 Jintong Rd, Zhuhai 519087, Guangdong, Peoples R China
NSTL
Elsevier
