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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Insights to the Clarification of Sugar Cane Juice Expressed from Sugar Cane Stalk and Trash
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Insights to the Clarification of Sugar Cane Juice Expressed from Sugar Cane Stalk and Trash

机译：从甘蔗茎和垃圾中表达出的甘蔗汁澄清的见解

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摘要

Processing of juice expressed from green sugar cane containing all the trash (i.e., tops and leaves, the nonstalk component) of the sugar cane plant during sugar manufacture has been reported to lead to poor clarified juice (CJ) quality. Studies of different liming techniques have been conducted to identify which liming technique gives the best clarification performance from juice expressed from green cane containing half of all trash extracted (GE). Results have shown that lime saccharate addition to juice at 76 °C either continuous or batchwise gives satisfactory settling rates of calcium phosphate flocs (5O-70 cm/min) and CJ with low turbidity and minimal amounts of mineral constituents. Surprisingly, the addition of phosphoric acid (≤300 mg/kg as P2O5), prior to liming to reduce juice turbidity (<80%), increased the Mg (≤101%) and Si (≤148%) contents particularly for clarified GE juices. The increase was not proportional with increasing phosphoric acid dose. The nature of the floes formed, including the zeta potential of the particles by the different liming techniques, has been used to account for the differences in clarification performance. Differences between the qualities of the CJ obtained with GE juice and that of burnt cane juices with all trash extracted (BE) have been discussed to provide further insights into GE processing.
机译：据报道，在制糖过程中，从包含所有甘蔗植物废料（即顶部和叶子，无茎成分）的绿色甘蔗中榨出的汁液会导致澄清的汁液（CJ）质量较差。已经对不同的浸灰技术进行了研究，以找出哪种浸灰技术从绿蔗中榨出的汁液具有最佳的澄清性能，其中的甘蔗汁占提取的所有垃圾（GE）的一半。结果表明，在76°C连续或分批向糖汁中添加蔗糖石灰可得到令人满意的磷酸钙絮凝物（5O-70 cm / min）和CJ的沉降速率，且浊度低且矿物成分量最少。出乎意料的是，在撒石灰之前添加磷酸（≤300mg / kg，以P2O5形式）以降低汁液浊度（<80％）会增加Mg（≤101％）和Si（≤148％）的含量，特别是对于澄清的GE果汁。该增加与磷酸剂量的增加不成比例。形成的絮凝物的性质（包括通过不同的浸胶技术产生的粒子的ζ电势）已用于解释澄清性能的差异。讨论了使用GE果汁获得的CJ品质与使用所有垃圾提取物（BE）的烧成甘蔗果汁的品质之间的差异，以提供对GE处理的进一步见解。

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