Studies on Natural Gum Resins for Chewing Gum

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  • チューインガム用天然樹脂の樹脂分について
  • チューインガムヨウ テンネン ジュシ ノ ジュシブン ニ ツイテ

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Abstract

Chewing gum consists of a chewing gum base, sugar and flavors. In this report, we have studied some natural gum which was a primary raw material in the chewing gum base. Chicle, chiquibul, jelutong, sorva and sorvinha were selected as typical naturalgum, their resin components (acetone-soluble fraction) were determined and the distinctive charact eristics of these resins were evaluated. The major components of them were triterpene alcohols which were present as their acetates. The presence of small amounts of free triterpene alcohols was also detected in the resins. In addition to the acetate, the characteristic components of each resin were identified as their caproate(C6), cinnamate(C9), palmitate(C16), montanate(C28) and fatty acid esters from behenate to dotriacontanate(C22-C32)in chicle, chiquibul, jelutong, sorva and sorvinha, respectively. After saponification of each resin, three terpene alcehols; α, β-amyrin and lupeol, were obtained as major components. Moreover, two or three unidentified components were detected in chicle and chiquibul. Therefore, five resins were distinguished by means of the analysis of carboxylic acid esters of triterpene alcohol in each resin by gas liquid chromatography and also plotting the absorption ratio 880cm-1/900cm-1 versus 810cm-1/820cm-1 of infrared absorption spectrum in each resin.

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