کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5768534 | 1628518 | 2017 | 7 صفحه PDF | دانلود رایگان |
- F-EPD products showed the best texture attributes and better overall quality.
- FD products had highest retention of anthocyanin contents but with soft taste.
- Rehydration ratio had significant negative correlations with hardness and density.
- Cyanidin-3-glucoside had significant positive correlation with antioxidant capacity.
- Note: FD: freeze drying, F-EPD: freeze and explosion puffing drying.
The effect of hot air drying (HAD), freeze drying (FD), hot air-explosion puffing drying (HA-EPD) and freeze-explosion puffing drying (F-EPD) on the physicochemical, nutritional and antioxidant properties of black mulberries were investigated. F-EPD products showed the best texture attributes (hardness 29.46Â N, crispness 30, rehydration ratio 1.65Â g/g), better colour (hue angle of 0.03) and the highest overall score of sensory evaluation. Although the highest retention of anthocyanin contents and antioxidant activities were found in FD samples, the products had the lowest crispness (3). Compared to HA-EPD and HAD, higher content of anthocyanin (12.38Â mg/g), cyanidin-3-glucoside (8.60Â mg/g) and cyanidin-3-rutinoside (2.62Â mg/g) remained in F-EPD products, as well as DPPH scavenging ability and ferric reducing power (91.53 and 120.59Â mg trolox equivalent/g, respectively). Hence, F-EPD could be a more promising technique to develop the dried products of black mulberries. Correlation analysis results showed that cyanidin-3-glucoside content had significant positive correlation with antioxidant capacity.
Journal: LWT - Food Science and Technology - Volume 80, July 2017, Pages 178-184