臺灣博碩士論文加值系統

由於糯米在亞洲, 只是單純地被用來作為食品加工之用, 至於工業上之運
用, 則未有所聞; 又因糯米中幾乎沒有直鍊澱粉的存在, 使得其水溶液黏
度遠高於現今紙張塗佈所用之玉米澱粉. 因此, 本研究即在評估於紙張塗
佈上, 糯米運用的可行性. 其結果如下: 1.在未經化學處理之糯米運用
上, 其塗佈紙與大豆蛋白及氧化澱粉在相同接著劑添加量上比較, 糯米提
供塗佈紙較高之不透明度, 但塗佈紙之拔蠟強度較低. 2.糯米在經過氫氧
化鈉處理後, 除了在白度方面外, 實驗所用之糯米, 包括長糯米, 短糯
米, 以及黑糯米均提供比未處理前較高之拔蠟強度, 光澤度, 以及不透明
度. 而在實驗所用之三種糯米中, 又以長糯米在高鹼處理濃度下的表現最
為優良. 3.糯米在經過氯化氫處理後, 三種糯米均不能提昇塗佈
紙之拔蠟強度及光澤度; 但在不透明度及白度方面, 則比未處理前高出甚
多. 三種實驗的糯米中, 尤以短糯米在不透明度及白度的提昇上, 表現最
優良.

This research evaluates the applicability of waxy rice as the
paper coating binder. The reasons for accomplishing the thesis
are because the literature hasshown that waxy rices are part of
the major agricultural products in Taiwan andAsia, however, waxy
rices have not been applied to any industrial processes.
Additionally, waxy rices are composed of nearly all amylopectin
as opposed tosignificant amylose content in other starch-
containing material, such as corn starch. This would give rise
to higher solution viscosity of the waxy rices and plausible
betterbinder performance. The experience work in this study has
comparedthe binder performance of waxy rices with that of the
oxidizedtapioca starch and soy protein. Moreover, waxy rices
aretreated in both alkaline and acidic media in attempt to
improvetheir applicability. The experience results are:
1.Without chemical treatment, the waxy rice (short form)
giveshigher opacity but lower picking strength than oxidized
starch and soy protein at the equivalent binder addition
levers.2.All studied waxy rices (long, short, and black forms),
after alkaline treatment, gives higher picking
strehgth, gloss, and opacity than without
alkaline treatment. Nevertheless, lower brightnessof coated
papers is obtaind when using alkaline-treatedwaxy rices.3.Acid
treatment on the waxy ricesresults in higher opacity and
brightness than without treatmentHowever, the acid treatment
also meaningfully lowers the gloss and picking stength of the
coated papers.