摘要
以‘宁杞7号’枸杞鲜果为试材,采用不同pH的微电水、不同浓度的食用碱和不同浸洗时间对其进行脱蜡处理,研究了不同处理对枸杞鲜果脱水速度及干果总糖含量、多糖含量、甜菜碱含量、商品率、色泽品相及制干成本的影响,以期获得更高效、环保的枸杞制干脱蜡剂及其使用方法。结果表明:微电水和食用碱对‘宁杞7号’鲜果在脱水速度、干果商品率、外观品相及成本上有明显差异,而对干果总糖、多糖和甜菜碱含量无明显影响。微电水处理后干果表面无碱粉残留,制干成本降低29.11%;但干果商品率降低10.55%,脱水速度较慢。食用碱液处理干果表面碱粉残留明显,成本较高;但商品率较高,脱水速度较快。生产中,推荐使用pH为10.5微电水浸洗2min对枸杞鲜果进行脱蜡。
The fresh fruit of‘NingqiⅦ’wolfberry was used as test material,and dewaxed with different pH micro electric water,different concentrations of edible lye and different soaking time.The effects of different treatments on the dehydration rate of fresh wolfberry fruit,total sugar content,polysaccharide content,betaine content,commodity rate,color,phase and drying cost were studied,in order to obtain more efficient,environmentally friendly medlar dry dewaxing agent and its application method.The results showed that micro electric water and edible lye dewaxing agents and their treatment levels had significant effects on the dehydration rate,commodity rate,appearance phase and drying cost of‘NingqiⅦ’fresh fruit,but had no significant effect on the contents of total sugar,polysaccharide and betaine.Among them,the micro electric water treatment had no alkali powder residue on the fruit surface,reduce drying cost by 29.11%,but the commodity rate was 10.55%,and the dehydration rate was slow.The residue of alkali powder on the fruit surface treated with edible lye was obvious,the cost was high,the appearance and taste were poor,but the commodity rate was high and the dehydration speed was fast.In production,the pH of micro electric water 10.5and the soaking time 2minutes were better.
作者
尚伟军
张旭
李小红
刘亚蓉
李捷
王有科
SHANG Weijun;ZHANG Xu;LI Xiaohong;LIU Yarong;LI Jie;WANG Youke(Yumen Forestry Management Station,Jiuquan,Gansu 735200;College of Forestry,Gansu Agricultural University,Lanzhou,Gansu 730070;Wolfberry Harmless Cultivation Engineering Research Center of Gansu Province,Lanzhou,Gansu 730070)
出处
《北方园艺》
CAS
北大核心
2022年第2期87-93,共7页
Northern Horticulture
基金
酒泉市科技计划资助项目
甘肃省自然科学基金资助项目(18JR3RA177)
甘肃省高等学校创新基金资助项目(2020A-055)。
关键词
枸杞
鲜果脱蜡
脱水速率
果实品质
wolfberry
dewaxing of fresh fruit
dehydration rate
fruit quality
