ITC Limited, ITC Life Sciences & Technology Centre, Bengaluru, India.
Food Sci Technol Int. 2022 Jan;28(1):93-104. doi: 10.1177/10820132211003707. Epub 2021 Apr 14.
Pomegranate juice is popular due to its unique health benefits, sensory characteristics and also a good source of bioactive compounds. Comparative study on processing effect of Not from Concentrate (NFC) and Reconstituted from concentrate (RFC) pomegranate juice on the nutritional and sensory characteristics of 'Ganesh' variant was conducted. Results showed that not much differences observed in parameters like pH, acidity, essential elements, protein, total sugars and polyphenol content between NFC and RFC. As per the study NFC had a better antioxidant activity with intracellular ROS inhibition of 11% higher with significant ( < 0.05) than RFC in HepG2 cell lines. Total anthocyanin content was significantly different ( < 0.05) in NFC (428.05 mg/l) compared to 326.74 mg/l in RFC expressed as cyanidin-3-glucoside. Iron uptake was 40 units (µg/mg protein) higher in NFC than RFC ( < 0.05) in HepG2 cells. Sensory flavor profile showed NFC having significant differences with respect to characteristic pomegranate freshness, fruitiness, sweetness and astringency mouthfeel. RFC had higher sweetish and cooked flavor with additional vegetable like notes of beet and carrot. Based on the data better antioxidant activity, iron bioavailability, anthocyanin content and sensory attributes were captured in pomegranate NFC juices over RFC juices.
石榴汁因其独特的健康益处、感官特性以及富含生物活性化合物而广受欢迎。本研究对比了非浓缩还原（NFC）和浓缩还原（RFC）石榴汁对‘Ganesh’品种营养和感官特性的加工效果。结果表明，NFC 和 RFC 之间的 pH 值、酸度、必需元素、蛋白质、总糖和多酚含量等参数差异不大。根据研究，NFC 在 HepG2 细胞系中具有更高的抗氧化活性，细胞内 ROS 抑制率比 RFC 高 11%，具有显著差异（<0.05）。NFC 中的总花青素含量（428.05mg/L）明显高于 RFC（326.74mg/L），表示为矢车菊-3-葡萄糖苷。NFC 在 HepG2 细胞中的铁摄取量比 RFC 高 40 个单位（µg/mg 蛋白），具有显著差异（<0.05）。感官风味分析表明，NFC 在石榴的新鲜感、果味、甜味和涩口感方面具有显著差异。RFC 具有更高的甜味和煮熟味，并有额外的蔬菜味，如甜菜和胡萝卜。根据数据，NFC 石榴汁具有更好的抗氧化活性、铁生物利用度、花青素含量和感官特性。
