摘要
为研究零添加膜法红糖加工过程中纳滤透过液(甘蔗植物水)的品质状况和开发利用价值,试验以红皮果蔗和新台糖22(ROC22)为原料,在800、50 nm两级陶瓷膜串联清净的基础上,采用250 u卷式膜进行纳滤浓缩,对得到的甘蔗植物水的理化指标、营养指标和挥发性香气成分进行分析比较,并采用营养质量指数(index of nutritional quality,INQ)法进行营养质量评价。结果表明,两个不同品种的甘蔗植物水中均不含蔗糖,均有蔗汁的特征香味,与蔗汁共有的挥发性成分占蔗汁总挥发性成分的50.00%和60.61%;挥发性成分以醇类最多,相对含量较高的有异辛醇、2-庚醇、1-戊烯-3-醇、正己醇、(-)-异雪松醇;甘蔗植物水中检出14种以上的游离氨基酸,其中有人体必需氨基酸7种,含量占游离氨基酸总量的66%以上,苏氨酸是其中的重要氨基酸,在两种甘蔗植物水中的含量分别为474.67和118.11 mg/L。甘蔗植物水中含有钾、钠、钙等7种矿物元素,其中钾的含量最高,分别达到907和525 mg/L,钾、铜元素的INQ分别达到40和14以上,是人体钾、铜元素补充的优质来源。总体来看,基于零添加膜法红糖工艺的纳滤甘蔗植物水是一种富含营养成分的纯天然植物风味饮用水,具有较好的开发利用价值。
In order to study the quality and development value of nanofiltration liquid(sugarcane plant water,SPW)by the No-added brown sugar from membrane processing,red peel fruit sugarcane and ROC 22 were used as materials to evaluate the nutritional quality with the method of index of nutritional quality(INQ),which could be obtained by comparing and calculating the physical indexes,chemical indexes,nutritional indexes and volatile aroma components of SPW with 250 u roll membrane nanofiltration concentration on the basis of two-stage ceramic membranes(800 nm and 50 nm).Results showed that SPW of two different varieties contained no sucrose and both had the characteristic fragrance of sugarcane juice.The volatile components shared with sugarcane juice accounted for 50.00%and 60.61%of the total volatile components in sugarcane juice.Alcohols were the most abundant,and the relative high contents of 2-ethylhexanol,2-heptanol,1-penten-3-ol,hexanol and(-)-isocedarol were higher.More than 14 kinds of free amino acids were detected in SPW,among which 7 kinds were essential amino acids for human body,accounting for more than 66%of the total free amino acids,threonine was the most important amino acid with the content in two SPW was 474.67 and 118.11 mg/L,respectively.The SPW contained 7 mineral elements such as potassium,sodium and calcium,among which the content of potassium was the highest,reaching 907 and 525 mg/L,respectively.The INQ of potassium and copper was above 40 and 14,respectively,which was a high-quality source of potassium and copper supplement for human body.In general,nanofiltration SPW based on No-added membrane brown sugar process was a kind of pure natural plant-flavor drinking water rich in nutrients,which had a good value of development and utilization.
作者
沈石妍
王智能
杨柳
杨婷
尚试雄
崔杰
应雄美
SHEN Shiyan;WANG Zhineng;YANG Liu;YANG Ting;SHANG Shixiong;CUI Jie;YING Xiongmei(Sugarcane Research Institute of Yunnan Academy of Agricultural Sciences,Key Laboratory on Genetic Improvement of Sugarcane in Yunnan Province,Kaiyuan 661699,China)
出处
《食品工业科技》
CAS
北大核心
2023年第4期41-49,共9页
Science and Technology of Food Industry
基金
云南省重大科技专项计划(202102AE090028)
云南省绿色食品牌打造科技支撑(蔗糖产业)专项经费。
关键词
甘蔗
纳滤
甘蔗植物水
品质评价
sugarcane
nanofiltration
sugarcane plant water
quality evaluation