Chawafambira Armistice
Department of Food Science and Technology Chinhoyi University of Technology Chinhoyi Zimbabwe.
Food Sci Nutr. 2021 Jun 25;9(8):4539-4549. doi: 10.1002/fsn3.2432. eCollection 2021 Aug.
The use of medicinal herbs in food processing to improve food quality and human health is growing in sub-Saharan Africa. Herbal infusions have perceived medicinal benefits. This study investigated the effect of incorporating extract on the phenolic, physicochemical, and sensory properties of a fruit-based wine. The fruit and were analyzed for proximate, pH, total soluble sugars (TSS), total sugar, titratable acidity, phenolics, and antioxidant activity (AOA). The prepared substrate was fermented at optimized fermentation temperature of 23°C, pH of 3.4, inoculum concentration of 9.5% (v/v) (), and extract concentration of 10% (v/v). The produced wine had a pH, total sugar, TSS, total acidity, and vitamin C content of 3.1 ± 0.2, 3.0 ± 0.1 g/L, 4.8 ± 0.1%, 5.9 ± 0.01 g/L, and 4.4 ± 0.1 mg/100 g, respectively. The wine had 12.2 ± 2.1 mg GAE/g, 0.06 ± 0.01 mg/g, and 1.8 ± 1.1 mg CE/g total phenols, tannins, and flavonoids, respectively. The alcohol, free sulfur dioxide (SO), AOA, and color values of the produced wine were 10.2 ± 0.1 alcohol by volume (ABV)%, 58.1 ± 1.2 mg/L, 73.1 ± 0.1 EC mg/L, and 40.4 ± 2.1% yellow, respectively. The flavor, color, and overall acceptance of the produced wine were rated as "good" and were significantly different ( < .05) from control wine. The addition of extracts enhanced total phenol, color, and sensory properties of the wine. The utilization of fruit by incorporating infusion can reduce postharvest losses and improve nutrition and health.
在撒哈拉以南非洲地区,将药草用于食品加工以改善食品质量和人类健康的做法日益普遍。草药浸液被认为具有药用功效。本研究调查了添加提取物对一种水果基葡萄酒的酚类、理化和感官特性的影响。对该水果和进行了近似分析、pH值、总可溶性糖(TSS)、总糖、可滴定酸度、酚类和抗氧化活性(AOA)分析。制备的底物在优化的发酵温度23°C、pH值3.4、接种物浓度9.5%(v/v)()和提取物浓度10%(v/v)下进行发酵。所生产葡萄酒的pH值、总糖、TSS、总酸度和维生素C含量分别为3.1±0.2、3.0±0.1 g/L、4.8±0.1%、5.9±0.01 g/L和4.4±0.1 mg/100 g。该葡萄酒的总酚、单宁和类黄酮含量分别为12.2±2.1 mg GAE/g、0.06±0.01 mg/g和1.8±1.1 mg CE/g。所生产葡萄酒的酒精含量、游离二氧化硫(SO)、AOA和颜色值分别为10.2±0.1%(体积分数)酒精含量(ABV)、58.1±1.2 mg/L、73.1±0.1 EC mg/L和40.4±2.1%黄色。所生产葡萄酒的风味、颜色和总体接受度被评为“良好”,且与对照葡萄酒有显著差异(<0.05)。添加提取物提高了葡萄酒的总酚、颜色和感官特性。通过加入浸液利用该水果可以减少收获后损失并改善营养与健康。