茶籽油在製取過程中夾帶著某些雜質,這些雜質影響了油脂的外觀與質量,需要茶籽油精煉設備去qu除chu。油you脂zhi的de精jing煉lian雖sui然ran提ti高gao了le油you脂zhi的de純chun度du,但dan是shi過guo度du的de精jing煉lian導dao致zhi大da量liang的de脂zhi溶rong性xing維wei生sheng素su和he其qi他ta營ying養yang成cheng分fen喪sang失shi,降jiang低di了le油you脂zhi的de營ying養yang價jia值zhi。因yin而er對dui於yu茶cha籽zi油you的de精jing煉lian,既ji要yao考kao慮lv到dao成cheng品pin油you的de外wai觀guan,又you要yao考kao慮lv成cheng品pin油you的de得de率lv與yu內nei在zai質zhi量liang。

為wei此ci,河he南nan中zhong瑞rui從cong製zhi取qu毛mao油you開kai始shi,直zhi到dao冬dong化hua結jie束shu,每mei個ge工gong序xu都dou留liu出chu部bu分fen油you樣yang,用yong以yi檢jian測ce各ge處chu理li工gong序xu對dui茶cha籽zi油you質zhi量liang的de影ying響xiang,並bing用yong油you茶cha籽zi油you和he花hua生sheng油you作zuo精jing煉lian對dui照zhao。希xi望wang這zhe些xie數shu據ju能neng給gei油you脂zhi企qi業ye技ji術shu人ren員yuan提ti供gong茶cha籽zi油you製zhi取qu方fang麵mian的de幫bang助zhu。
1、茶cha籽zi油you精jing煉lian過guo程cheng中zhong酸suan值zhi變bian化hua的de測ce定ding。在zai精jing煉lian過guo程cheng中zhong,油you脂zhi的de酸suan值zhi在zai堿jian煉lian後hou下xia降jiang,脫tuo色se後hou稍shao有you上shang升sheng,然ran後hou下xia降jiang。油you脂zhi堿jian煉lian後hou酸suan值zhi的de降jiang低di是shi由you於yu中zhong和he了le油you脂zhi中zhong的de遊you離li脂zhi肪fang酸suan,脫tuo色se油you中zhong酸suan值zhi的de上shang升sheng是shi由you於yu活huo性xing白bai土tu脫tuo色se時shi帶dai入ru了le無wu機ji酸suan所suo致zhi。
2、茶cha籽zi油you精jing煉lian過guo程cheng中zhong碘dian值zhi變bian化hua的de測ce定ding。茶cha籽zi油you的de碘dian值zhi在zai堿jian煉lian工gong序xu中zhong稍shao有you上shang升sheng,在zai冬dong化hua後hou上shang升sheng明ming顯xian。油you脂zhi冬dong化hua後hou碘dian值zhi的de升sheng高gao是shi由you於yu在zai冬dong化hua過guo程cheng中zhong含han飽bao和he脂zhi肪fang酸suan多duo的de甘gan油you三san酸suan酯zhi因yin結jie晶jing除chu去qu,油you脂zhi中zhong不bu飽bao和he脂zhi肪fang酸suan組zu分fen增zeng加jia所suo致zhi。而er堿jian煉lian後hou碘dian值zhi上shang升sheng也ye許xu是shi因yin為wei油you中zhong硬ying脂zhi酸suan比bi例li降jiang低di的de緣yuan故gu。
3、茶cha籽zi油you精jing煉lian過guo程cheng中zhong過guo氧yang化hua值zhi變bian化hua的de測ce定ding。脫tuo色se過guo程cheng中zhong過guo氧yang化hua值zhi降jiang低di較jiao多duo,其qi原yuan因yin是shi活huo性xing白bai土tu具ju有you良liang好hao的de吸xi附fu過guo氧yang化hua物wu的de作zuo用yong,而er脫tuo臭chou後hou的de油you脂zhi過guo氧yang化hua值zhi有you所suo增zeng加jia,是shi由you於yu本ben實shi驗yan真zhen空kong脫tuo臭chou過guo程cheng中zhong真zhen空kong度du不bu太tai高gao,油you中zhong存cun在zai的de微wei量liang氧yang氣qi在zai高gao溫wen下xia與yu油you脂zhi反fan應ying而er導dao致zhi過guo氧yang化hua物wu增zeng加jia。
4、茶籽油精煉過程中色澤變化的測定。油脂在精煉過程中色澤不斷地降低,其中堿煉、脫色兩個工序降低較為明顯,但每個工序所去掉的色澤是有差異的。
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