xinxianhuanghuacaicaizhaihoujiyikaihuabianzhi，daozhishangpinxingxiajiang，tongshixinxianhuanghuacaidejiagongchuyunkunnan，yizhishizhiyuezhenggexinxianhuanghuacaixiaoshoudepingjing，zhexieyinsuyanzhongyingxianglehuanghuacaichanyedefazhanzhuangda。hunanshengshaodongxianjinghuanongchanpinkaifagongsishoucijiangzhenkongyulengjishuyunyongyuxianhuanghuacaibaoxianzhong，shidexianhuanghuacaidebaoxianqikeda2個月左右。

　　由you於yu新xin鮮xian的de黃huang花hua菜cai采cai摘zhai後hou
，體ti內nei的de呼hu吸xi作zuo用yong依yi然ran十shi分fen旺wang盛sheng，導dao致zhi花hua蕾lei在zai采cai摘zhai後hou貯zhu運yun銷xiao售shou過guo程cheng中zhong大da量liang的de開kai花hua，營ying養yang成cheng份fen損sun失shi較jiao大da，商shang品pin性xing下xia降jiang。真zhen空kong預yu冷leng技ji術shu是shi目mu前qian國guo內nei較jiao先xian進jin的de冷leng藏zang輔fu助zhu技ji術shu，它ta將jiang新xin鮮xian果guo蔬shu等deng農nong產chan品pin放fang在zai密mi閉bi的de容rong器qi中zhong，迅xun速su抽chou出chu空kong氣qi和he水shui蒸zheng氣qi，形xing成cheng真zhen空kong，使shi原yuan料liao中zhong的de水shui分fen在zai低di壓ya下xia蒸zheng發fa

，原yuan料liao因yin表biao麵mian水shui分fen的de蒸zheng發fa而er冷leng卻que，在zai短duan時shi間jian內nei降jiang至zhi所suo需xu溫wen度du。同tong時shi在zai真zhen空kong狀zhuang態tai下xia可ke大da量liang抽chou除chu原yuan料liao組zu織zhi內nei的de水shui分fen與yu致zhi熟shu因yin子zi等deng


，有you效xiao地di抑yi製zhi了le活huo體ti原yuan料liao的de呼hu吸xi等deng生sheng理li生sheng化hua活huo動dong，再zai配pei合he塑su料liao袋dai包bao裝zhuang，能neng顯xian著zhu減jian少shao一yi般ban機ji械xie冷leng庫ku製zhi冷leng導dao致zhi的de水shui分fen蒸zheng發fa作zuo用yong，保bao持chi原yuan料liao新xin鮮xian
，減jian少shao貯zhu藏zang失shi重zhong率lv。據ju湖hu南nan省sheng科ke技ji廳ting科ke技ji查zha新xin報bao告gao顯xian示shi
，該gai技ji術shu在zai水shui果guo花hua卉hui冷leng藏zang中zhong應ying用yong較jiao多duo，但dan在zai黃huang花hua菜cai保bao鮮xian上shang的de應ying用yong在zai尚shang為wei首shou次ci。

　　湖南邵東是我國黃花菜的重要產區，種植曆史有1千多年。遠銷歐、美、非洲等20多個國家和地區，每年的外貿出口量占全國幹黃花菜出口總量的三成以上

，年產值1.2億yi元yuan。但dan長chang期qi以yi來lai對dui於yu黃huang花hua菜cai的de鮮xian品pin銷xiao售shou一yi直zhi未wei能neng有you所suo突tu破po。此ci次ci邵shao東dong縣xian精jing華hua農nong產chan品pin公gong司si運yun用yong新xin技ji術shu


，使shi得de鮮xian黃huang花hua菜cai的de銷xiao售shou價jia格ge比bi原yuan來lai上shang漲zhang了le4元/公斤左右。2003年該公司僅在廣東地區就銷售了2300噸。