Comparison and screening of bioactive phenolic compounds in different blueberry cultivars: Evaluation of anti-oxidation and α-glucosidase inhibition effect

Anthocyanin extracts of lingonberry (Vaccinium vitis‐idaea L.) attenuate serum lipids and cholesterol metabolism in HCD‐induced hypercholesterolaemic male mice

“…Table has listed the characterisation results of LAE components by the UPLC‐QTOF‐MS/MS. These were identified by comparing the MS spectra as well as by reported literature (Xu et al ., ; Wu et al ., ; Ye et al ., ). The relative content of the major anthocyanin was calculated by the peak area of the HPLC chromatogram and cyanidin‐3‐O‐glucoside (C3G) was used as the standard sample.…”

“…According to the previous report of our laboratory (Wu et al ., ), we found that the anthocyanin from blueberry ( Vaccinium spp .) has strong inhibitory effects on α‐glucosidase, which indicates that anthocyanin may be a potential resource for anti‐diabetes products.…”

“…The LAE was dissolved in ultrapure water to prepare the solution at a concentration of 1 mg mL −1 and filtered through a 0.22 μm cellulose acetate membrane before injection. HPLC analysis was performed using a previously described method with some modifications (Wu et al ., ). The anthocyanins were separated on a Diamonsil Plus C18‐A column (4.6 × 250 mm, 5 μm; Dikma Technologies Inc., Beijing, China), measured by a Waters e2695 (Separations Module) HPLC with a 2998 photodiode array detector (Milford, MA, USA).…”

Stability and antioxidant activity of anthocyanins from purple sweet potato (Ipomoea batatas L. cultivar Eshu No. 8) subjected to simulated in vitro gastrointestinal digestion

“…It was likely that detected phenols subsequent to gastrointestinal digestion contain breakdown products of anthocyanins (McDougall et al ., ). Ten copigments were identified and compared with previously studied data in numerous sources (Wu et al ., ). The ion chromatograms were illustrated in Fig.…”

“…Anthocyanins and copigment of Pre sample and Intestine sample were identified by following previously described methods (Wu et al ., ; Luo et al ., ) with some modifications. The analysis was conducted by UPLC‐LTQ‐MS/MS (Thermo Corp. Finnigan, Silicon Valley, CA, USA).…”