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首页> 外文期刊>Journal of Sustainable Development >Effect of Oil Heat Treatment on Chemical Constituents of Semantan Bamboo (Gigantochloa scortechinii Gamble)
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Effect of Oil Heat Treatment on Chemical Constituents of Semantan Bamboo (Gigantochloa scortechinii Gamble)

机译：油热处理对香竹（Gigantochloa scortechinii Gamble）化学成分的影响

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Effect of oil heat treatment on chemical constituents of 3 years old Gigantochloa scortechinii Gamble bamboo was investigated. The bamboo splits within epidermis were heat-treated using crude palm oil at temperature 140 ° C, 180 ° C and 220 ° C for duration 30 and 60 min. After removed the epidermis, the samples were then grind to pass a BS 40-mesh sieve and retained on a BS 60-mesh sieve. The sawdust was air dried for several days before conducted to chemical analyses (cellulose, hemicellulose and lignin) based on TAPPI Standard Methods. The colorimetric method devised by Humprey and Kelly (1960) was adapted to analysis starch in bamboo. Reading was obtained through Baush Lomb UV Spectrophotometer at 650 m m calculated by standard reference using A.R. potato starch. Control was used as comparison for each type of test conducted. There was no significant different between control and condition at 140 ° C for 60 min (81.4%) of holocellulose content. The value was decreased by 2.1 to 10.7% (79.7 to 72.7%) after heating at 180 to 220 ° C for 30 to 60 min. ? The hemicellulose content of bamboo was ranged 24.1 to 27.8% after heating at 140 -220 ° C for 30 to 60 min. The cellulose content of heat-treated bamboo was ranged 47.4 to 55.2% after reduced about 2 to 14%. Lignin content increased about 16% (26%) at 220 ° C/60 min after reduced approximately 1 to 5% at 140 to 180 ° C for 30 to 60 min. Starch content was largely reduced about 2 to 54% (4 to 1.9%) at 140 to 180 ° C for 30 to 60 min of treatment. The results indicated that degradation of cellulose and hemicellulose of heat-treated bamboo was attributed to plasticization of lignin during heating in the same time hydrolysed the starch content.
机译：研究了油热处理对3岁大叶菊（Gigantochloa scortechinii Gamble Bamboo）化学成分的影响。使用粗棕榈油在温度140°C，180°C和220°C下热处理表皮内的竹片，历时30和60分钟。除去表皮后，然后将样品研磨以通过BS 40目筛，并保留在BS 60目筛上。将木屑风干几天，然后再根据TAPPI标准方法进行化学分析（纤维素，半纤维素和木质素）。 Humprey和Kelly（1960）设计的比色法适用于分析竹子中的淀粉。通过Baush Lomb UV分光光度计在650 m m下通过使用A.R.的标准参考计算得出读数。马铃薯淀粉。对照用作每种测试类型的比较。对照和条件在140°C时60分钟（81.4％）的总纤维素含量无显着差异。在180至220°C加热30至60分钟后，该值降低了2.1至10.7％（79.7至72.7％）。 ？在140 -220°C加热30至60分钟后，竹的半纤维素含量为24.1至27.8％。热处理的竹子的纤维素含量降低约2-14％后，在47.4-55.2％的范围内。木质素含量在140°C至180°C下约30％至60分钟减少约1％至5％后，在220°C / 60分钟时增加约16％（26％）。在30至60分钟的处理过程中，淀粉含量在140至180°C下大大降低了约2至54％（4至1.9％）。结果表明，经热处理的竹纤维和半纤维素的降解归因于加热过程中木质素的增塑，同时水解了淀粉含量。

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