酸化软煮法制取胡萝卜汁的工艺

    Technology for processing carrot juice using acidifying and cooking-softening method

    • 摘要: 以新鲜胡萝卜为主要原料,研究了用酸化软煮法制取胡萝卜汁的加工工艺,并通过对比试验确定了最佳工艺参数。结果表明,用4%的NaOH,料液比1∶2,在95℃脱皮处理73 s,和添加0.5%柠檬酸,按料液比2∶1软煮45 min,可获得较好的脱皮和磨汁效果,并使其原料的利用率提高至80%以上。20%糖液和50%胡萝卜汁配成原浆含量15%的流态汁,在100℃杀菌处理20 min后,得到的胡萝卜汁色泽橙黄,口感细腻,流动性和稳定性较好;添加0.1%的琼脂和0.35%的羧甲基纤维素钠作为复合稳定剂,经高压均质杀菌处理,解决了产品沉淀问题。

       

      Abstract: The technology for processing carrot juice was studied. The fresh carrot was taken as main material. Through comparison experiment, the optimal technology parameters were determined.The result showed that decrutating carrot at 95℃ with 4% NaOH, carrot: 4% NaOH 1∶2(m/v), and boiling carrot for 45 min by adding 0.5% citric acid, carrot: liquid 2∶1(m/v), the better effect of decrustation and grinding was obtained and the utilization percentage of carrot was more than 80%. By disinfecting 15% juice(20% sugar liquor: 50% carrot juice 7∶3(v/v)) at 100℃ for 20 min, the obtained carrot juice has the feature of orange color, better fluidity and stability. The subsiding and substratification problems of product were solved with addition of 0.1% agar and 0.35% Cmc-Na as compound stabilizer and homogenization at high-pressure.

       

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