02997nas|a2200277 i 450000500170000000800410001703500150005810000220007324500580009526000520015330000230020549000270022850001530025550200570040852018000046565000110226565000310227670000400230770000520234770000440239970000470244370000520249071000530254281000590259585600650265420260817162840.0020215s2001    th  uzm rtt  00|  a1eng d  a.b118458920 aKrid Ruksiriphong10aApplication of carboxymethyl chitin in hair cosmetics  aBangkok :bAsian Institute of Technology,c2001  a70, A4, B11 leaves1 aThesis ;vno. BP-01-08  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development   aThesis (M.Sc.) - Asian Institute of Technology, 2001  aCarboxymethyl-chitin (CMCh) is an anionic polysaccharide and a chemical modification of chitin that provides an alternative to improve the biopolymer's water solubility. The CMchitin was prepared from chitin of shrimp shell. The application of derivatives produced for hair cosmetics was studied. CM-chitin was unable to form stable mixture in clear shampoo formulation, whereas in non-clear shampoo formulation, the mixture was observed stable throughout the period of study. The shampoo was comprised anionic and amphoteric surfactants. The effect of CM-chitin on hairs was evaluated by both instrumental and noninstrumental techniques. For instrumental technique, instron machine that was used for dry combability method, gave scientific or quantitative results. The results showed that in-house and commercial shampoos containing 0.2% - 0.5% CM-chitin greatly reduced combing forces of hair. These formula also help to improve the conditioning, smoothness and manageability of hair Noninstrumental technique was further used to evaluate shampoos with 0.2% - 0.5% CMchitin in order to distinguish significant different among control shampoo and shampoos with 0.2% and 0.5% CM-chitin by sensory test. First, In vitro test for smoothness and dry combability evaluations gave the effective result at 0.2% and 0.5% CM-chitin shampoos more than control shampoo, however, there is no significantly difference between 0.2% CM-chitin and 0.5% CM-chitin shampoo. Therefore, the proper concentration of CM-chitin at 0.2% was selected for consumer test on forty women panelists for comparing with control shampoo. The result of consumer test showed that the hair treated 0.2% CM-chitin shampoo providing more smoother and manageable effect of the hair was more acceptable than shampoo without CMchitin. 10aChitin10aHair preparations industry1 aStevens, Willem Frans,eChairperson1 aSuwalee Chandrkrachang, eExamination committee1 aTrankler, Josef,eExamination Committee1 aUdomchai Chinadit, eExamination committee1 aSumalai Srikamlaithong, eExamination committee2 aUnilever Thai Holdings Ltd., eScholarship donor2 aAsian Institute of Technology.tThesis ;vno. BP-01-08  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B07856