目前在國內外廣泛應用的貯藏方式可以歸納為兩類:一類是低溫貯藏,即利用自然低溫或人工降溫(機械製冷或加冰)的方法,使貯藏環境在低溫時進行貯藏;另一類是控製氣體成分貯藏(簡稱氣調貯藏)。這種貯藏方式多是在低溫條件下,調節貯藏場所中的氣體成分,使之達到適於果蔬貯藏的氣體指標,從而得到更好的貯藏效果。
隨著果蔬貯藏技術和一些處理方法的不斷改革和創新,除采用以上方式進行貯藏外,目前國內外對輻射處理、電磁場處理以及減壓貯藏等方麵的研究也較為注意,為果蔬貯藏開避了新的研究途徑。
(一) 簡易貯藏保鮮
簡易貯藏包括堆藏、溝藏(埋藏)hejiaozangsanzhongjibenxingshi,yijiyoucieryanshengdejiazhizhuzanghedongzang。zhexiedoushiliyongzirandiwenjinliangweichisuoyaoqiudezhuzangwendu,jiegoushebeijiandan,bingqiedouyouyidingdezifabaozangzuoyong。
1.堆藏
是(shi)將(jiang)果(guo)蔬(shu)直(zhi)接(jie)堆(dui)放(fang)在(zai)田(tian)間(jian)和(he)果(guo)園(yuan)地(di)麵(mian)或(huo)空(kong)地(di)上(shang)的(de)臨(lin)時(shi)性(xing)貯(zhu)藏(zang)方(fang)法(fa)。堆(dui)藏(zang)還(hai)可(ke)以(yi)作(zuo)為(wei)一(yi)種(zhong)預(yu)貯(zhu)方(fang)法(fa)。堆(dui)藏(zang)時(shi),一(yi)般(ban)將(jiang)果(guo)蔬(shu)直(zhi)接(jie)堆(dui)放(fang)在(zai)地(di)麵(mian)上(shang)或(huo)淺(qian)溝(gou)(坑)中,根據氣溫變化,分次加厚覆蓋,以進行遮蔭或防寒保溫。所用覆蓋物多就地取材,常駐用覆蓋材料有葦席、草簾、作物秸稈、tudeng。youyuduizangshizaidimianshangduijizhuzang,yinciguoshiruzhuhoushoudiwenyingxiangjiaoxiao,ershouqiwenyingxiangjiaoda,youqizaizhuzangchuqi,yinqiwenjiaogao,duiwennanyuxiajiang。yinci,duizangbuyizaiqiwengaodediquyingyong,yibanzhizaiqiudongzhijizuoduanqizhuzangshicaiyong。zhuzangduidekuanduhegaoduyinggenjudangdiqihoutedian,guoshuzhongleilaijueding。
2.溝藏
是果蔬貯藏方法中較為簡便的一種,根菜、板栗、核桃、山楂等一般多用此法保藏;pingguodengshuiguoyeyoucaiyongcifabaozangde。gouzangyingzaidimianwagouhuokeng,maizangdidianyingxuanzedishigaozao,tuzhijiaozhanzhong,paishuilianghao,dixiashuiweijiaodizhichu。goudefangxiangzaibijiaohanlengdediqu,yinanbeichangweiyi;在zai較jiao為wei溫wen暖nuan地di區qu,多duo采cai用yong東dong西xi長chang方fang向xiang,溝gou的de深shen度du一yi般ban根gen據ju當dang地di凍dong土tu層ceng的de厚hou度du而er定ding,在zai凍dong土tu層ceng以yi下xia貯zhu藏zang。埋mai藏zang的de效xiao果guo除chu受shou土tu溫wen影ying響xiang外wai,還hai與yu其qi寬kuan度du有you關guan。果guo蔬shu在zai溝gou內nei堆dui放fang的de方fang法fa一yi般ban有you以yi下xia幾ji種zhong:一是堆積法,即將果蔬散堆於溝內,再用土(沙)覆蓋;二是層積法,即每放一層果蔬,撒一層沙,層積到一定高度後,再用土(沙)覆蓋;三是混沙埋藏法,將果蔬與沙混置後,堆放於溝內,再進行覆蓋;四是將果蔬裝筐後入溝埋藏。
3.窖藏
貯藏窖的種類很多,其中以棚窖最為普遍。此外,在山西、陝西、河南等地還有窯洞、四川南充等地貯藏柑桔采用井窖的形式等。這些窖多是根據當地自然、地(di)理(li)條(tiao)件(jian)的(de)特(te)點(dian)建(jian)造(zao)的(de)。它(ta)既(ji)能(neng)利(li)用(yong)穩(wen)定(ding)的(de)土(tu)溫(wen),又(you)可(ke)以(yi)利(li)用(yong)簡(jian)單(dan)的(de)通(tong)風(feng)設(she)備(bei)來(lai)調(tiao)節(jie)和(he)控(kong)製(zhi)窖(jiao)內(nei)的(de)溫(wen)度(du)。果(guo)蔬(shu)可(ke)以(yi)隨(sui)時(shi)入(ru)窖(jiao)出(chu)窖(jiao),並(bing)能(neng)及(ji)時(shi)檢(jian)查(zha)貯(zhu)藏(zang)情(qing)況(kuang)。但(dan)是(shi),棚(peng)窖(jiao)以(yi)我(wo)卡(ka)拉(la)奇(qi)其(qi)它(ta)窖(jiao)型(xing)一(yi)般(ban)通(tong)風(feng)來(lai)降(jiang)低(di)。
(二) 通風庫貯藏保鮮
通風庫是棚窖的發展,其形式和性能與棚窖相似。棚窖是一種臨時性的貯藏場所,通風庫則是永久性建築,使用了磚、木、shuinijiegou,qizaojiasuibipengjiaogao,danzhuzangliangda,keyichangqishiyong。dangqianguoshuchanliangzhuniandafuduzengjia,erguoshudezhuzangyoubunengwanquanyikaolengzangku。yinci,tongfengzhuzangkuzaixiangdangyiduanshiqineijuyoujiaodadeshiyongjiazhi。
tongfengkuyeshiliyongkongqiduiliudeyuanli,yinruwaijiedelengkongqierqijiangwenzuoyong。zhuyaoshizaiyoulianghaodegerebaowenxingnengdekufangnei,shezhijiaowanshanerlinghuodetongfengxitong,liyongzhouyewencha,tongguodaoqishebei,jiangkuwaidiwenkongqidaorukunei,zaijiangkuneirekongqi、乙(yi)烯(xi)等(deng)不(bu)良(liang)氣(qi)體(ti)通(tong)過(guo)排(pai)氣(qi)設(she)備(bei)排(pai)出(chu)庫(ku)外(wai),從(cong)而(er)保(bao)持(chi)果(guo)蔬(shu)較(jiao)為(wei)適(shi)宜(yi)的(de)貯(zhu)藏(zang)環(huan)境(jing)。但(dan)是(shi),由(you)於(yu)通(tong)風(feng)庫(ku)是(shi)依(yi)靠(kao)自(zi)然(ran)溫(wen)度(du)冷(leng)卻(que)貯(zhu)藏(zang),因(yin)此(ci),受(shou)氣(qi)溫(wen)限(xian)製(zhi)較(jiao)大(da),尤(you)其(qi)是(shi)在(zai)貯(zhu)藏(zang)初(chu)期(qi)和(he)後(hou)期(qi),庫(ku)溫(wen)較(jiao)高(gao),難(nan)以(yi)控(kong)製(zhi),影(ying)響(xiang)貯(zhu)藏(zang)效(xiao)果(guo)。為(wei)了(le)彌(mi)補(bu)這(zhe)一(yi)不(bu)足(zu),可(ke)利(li)用(yong)電(dian)風(feng)扇(shan)、鼓風機、加冰或機械製冷等方法加速降低庫溫,以進一步提高貯藏效果,延長貯藏期。
通tong風feng貯zhu藏zang庫ku宜yi建jian築zhu在zai地di勢shi高gao燥zao,通tong風feng良liang好hao,沒mei有you空kong氣qi汙wu染ran,交jiao通tong較jiao為wei方fang便bian函han的de地di方fang。通tong風feng庫ku的de方fang向xiang要yao根gen據ju當dang地di最zui低di氣qi溫wen和he風feng向xiang而er定ding。在zai北bei方fang以yi南nan北bei長chang為wei宜yi,這zhe樣yang可ke以yi減jian小xiao冬dong季ji寒han風feng的de直zhi接jie襲xi擊ji麵mian,避bi免mian庫ku溫wen過guo低di;在南方則采用東西長,以減少陽光東曬及西曬的照射麵,加大迎風麵。
通風貯藏庫一般有地上式、半地下式、地下式三種類型。地上式通風貯藏庫的庫身全部建築在地麵以上,因此受氣溫的影響較大;半地下式通風貯藏庫,一部分庫身在地麵以下,一部分在地麵以上,庫溫既受氣溫影響,又受土溫影響;dixiashitongfengzhuzangkudekushenquanbujianzhuzaidimianyixia,shoudiwenyingxiangzuida,shouqiwenyingxiangzuixiao。zhiyucaiyongnayizhongleixingdetongfengzhuzangku,yaogenjudangdiqihou(主要是氣溫、地溫)、地理等條件來決定。在冬季嚴寒地區,多采用地下式,這有利於防寒保溫;在溫暖地區,應采用地上式,有利於通風降溫;在冬季比較溫暖地區,則應采用地上式,有利於通風降溫,在冬季比較溫暖地區,則應采用半地下式;在地下水位較高的低窪地區,要采用地上式。
(三) 冷庫貯藏保鮮
lengkuzhuzangzhijixiezhilengzhuzang。yinci,lengkuzhuzangshouxianxuyaojubeihenhaojueyuangereshebeideyongjiuxingjianzhukufang,yijijixiezhilengzhuangzhi。zheyangdepeitaoshebeikeyiliyongjixielengquezhuangzhizhilengzhuzang。genjusuozhuzangguoshudezhongleihepinzhongdebutong,jinxingwendudetiaojiehekongzhi,yidadaochangqizhuzangdemude。jixielengzangkeyimanzubutongguoshuduibutongwendudexuyao,yinci,keyiquannianjinxingzhuzang。
常見的冷藏庫按其使用性質可分為三大類:生產性冷庫、fenpeixinglengkuhelingshouxinglengku。shengchanxinglengkuyibanjianyuhuoyuanjiaojizhongdechanqu,gongchanpinjizhonghoudelengdongjiagonghezhuzangzhiyong,zhelulengkuyaoqiujuyoujiaodadezhilengnenglibingyouyidingdezhouzhuankurong。fenpeixinglengkuyibanjianzaidazhongxingchengshilihuojiaotongshuniujirenkoujiaojizhongdegongkuangqu,zuoweishichanggongyingdezhongzhuanhezhucunhuopinzhiyong。zhezhonglengkuyeyaozhujiaodadezhilengnengli,bingshiyuduopinzhongdezhuzang,gutongchangjiangechengruogangezhuzangshi,keweichibutongdezhuzangwendu,kuneiyunshuyaoliuchang,tuntuyaoxunsu。lingshouxinglengkuyibanshigonglingshoubumenshiyongdeyizhonglengku。tadekurongliangjiaoxiao,zhucunqijiaoduan,kuwenkesuixuyaoergaibian。muqianwoguogedideguoshulengzangkudadoushuyushengchanxingkuweifenpeixingku,bingqiechangchangliangzhejianyong。
冷藏庫是永久性的建築,庫房的隔熱效能極變重要。隔熱材料主要有兩種類型:一種是加工成板塊等固定形狀的鋼性材料,如軟木板、聚苯乙烯泡沫塑料板等。另一種是顆粒鬆散的散裝性材料,如木屑、膨脹珍珠岩、daokedeng。gudingxingzhuangdecailiao,nenggoubaochiqiyuanlaidexingzhuang,chijiunaiyong。songsandekelizhuangcailiaoshiyuzuotianchongcailiaojijiangqitianchongyuliangcengzhuanqiangzhijian。tianchongshiyaozhuyitianyun、tianshi,zuihaofencengshezhi,yimianxiachen,fouzehuizaochenggerecengdeshangbukongxu,xingchenglourequdao。youyurekongqitongguolengzangkuqiangtijinrukuneizhiqianbidingyulengkongqixiangyu,rekongqizhongdehanshuiliangjiaolengkongqidehanshuiliangduo,yinerrekongqibeilengqueshiyoulengningshuichansheng。ruguogerecailiaoxishoulelengningshui,duijuedaduoshugerecailiaolaijiang,tadejuerexiaoguohuimingxianxiajiang,bingqiejujidelengningshuizaidiwenxiajiebinghuigeikutijiegouchanshengweixian。yinci,weilefangzhishuizhengqishentoujinrugerecailiaozhongxingchenglengningshui,bixuzairekongqishentouliuxianggerecengderedeyice,shezhigereceng。changyongdegerecengcailiaoyouliqing、油氈、乳化瀝青等。其做法有三油二氈,即三層瀝青油刷於兩層油氈的內、外側。在庫內外溫差較小,庫外相對濕度較低的情況下,也可采用一氈二油和鋁箔。
冷庫的製冷設備包括有壓縮機組、冷凝器和蒸發器。製冷壓縮機組根據使用的製冷劑不同,可分為氨壓縮機組、氟-12壓縮機組、氟-22壓縮機組。從製冷劑的來源和價格來講,氨製冷劑來源方便,價格也較便宜。但是氨製冷係統結構較複雜。由於氨的可窒息性、刺激性和與空氣的爆炸性,使用中其安全防範措施要求嚴格。氟-22製冷劑無毒、無刺激性、易yi揮hui發fa不bu爆bao炸zha,因yin此ci使shi用yong起qi來lai比bi較jiao安an全quan。冷leng凝ning器qi是shi用yong冷leng卻que介jie質zhi與yu從cong壓ya縮suo機ji中zhong出chu來lai的de高gao溫wen高gao壓ya氣qi態tai製zhi冷leng劑ji進jin行xing熱re交jiao換huan產chan裝zhuang置zhi。通tong常chang冷leng凝ning器qi采cai用yong水shui作zuo為wei交jiao換huan介jie質zhi,也ye有you采cai用yong空kong氣qi作zuo為wei冷leng卻que介jie質zhi的de。蒸zheng發fa器qi的de作zuo用yong是shi保bao證zheng製zhi冷leng劑ji在zai低di壓ya低di溫wen狀zhuang態tai下xia蒸zheng發fa,吸xi收shou外wai界jie空kong氣qi的de熱re量liang從cong而er達da到dao給gei外wai界jie製zhi冷leng。
(四) 氣調庫和塑料薄膜小包裝氣調貯藏保鮮
氣調貯藏就是把果蔬放在一個相對密閉的貯藏環境中,同時改變、調節貯藏環境中的氧氣、eryanghuatanhedanqidengqitichengfenbili,bingbatamenwendingzaiyidingdenongdufanweineideyizhongfangfa。qitiaozhuzangshizaibaochidiwendetiaojianxiajinxingde。yincizhuzangchangsuochuyoujiangwenshebeiwai,haiyaoyoujiaogaodeqimixing,erqiekufangyingnengchengshouyidingdeyali。qitiaozhuzangkefenweikongzhiqitiaozhuzanghezifaqitiaozhuzang。
1. 氣調冷藏庫
氣調冷藏庫除了應具備普通冷藏庫的特征外,還應具備有較高的氣密性能,以維持氣調庫所需的氣體濃度。氣調冷藏庫在隔熱、製(zhi)冷(leng)和(he)維(wei)護(hu)等(deng)方(fang)麵(mian)的(de)結(jie)構(gou)和(he)設(she)備(bei)均(jun)與(yu)常(chang)規(gui)冷(leng)藏(zang)庫(ku)相(xiang)同(tong),隻(zhi)是(shi)前(qian)者(zhe)要(yao)求(qiu)一(yi)定(ding)的(de)氣(qi)密(mi)性(xing),並(bing)在(zai)庫(ku)內(nei)氣(qi)壓(ya)變(bian)化(hua)時(shi)庫(ku)體(ti)力(li)勞(lao)要(yao)能(neng)承(cheng)受(shou)一(yi)定(ding)的(de)壓(ya)力(li)。為(wei)此(ci)通(tong)常(chang)在(zai)隔(ge)熱(re)層(ceng)內(nei)側(ce)再(zai)加(jia)一(yi)個(ge)氣(qi)密(mi)層(ceng)。氣(qi)密(mi)層(ceng)所(suo)用(yong)的(de)材(cai)料(liao)和(he)結(jie)構(gou)有(you)多(duo)種(zhong),最(zui)早(zao)用(yong)鍍(du)鋅(xin)鐵(tie)片(pian)或(huo)薄(bo)鋼(gang)板(ban)焊(han)接(jie)密(mi)封(feng),後(hou)來(lai)又(you)用(yong)高(gao)密(mi)度(du)膠(jiao)合(he)板(ban)(即用塑料浸透過的膠合板)和鋁箔夾心板(在鋁箔兩側貼防潮紙或聚合薄膜)deng。zhexiecailiaojunnengdadaojiaohaodeqimixing,haikebijiaofangbiandibaputonglengkugaijianchengweiqitiaoku。suizhesuliaogongyedefazhan,qitiaokudeqimijiegouyoulexindetupo:一是采用預製夾心板(一般用10cm厚的聚苯乙烯泡沫塑料),二是采用聚氨酯泡沫塑料。用聚苯乙烯泡沫塑料作夾心板,足以抵禦40℃溫(wen)差(cha)而(er)起(qi)較(jiao)好(hao)的(de)隔(ge)熱(re)作(zuo)用(yong),外(wai)側(ce)金(jin)屬(shu)板(ban)兼(jian)有(you)良(liang)好(hao)的(de)隔(ge)氣(qi)和(he)氣(qi)密(mi)性(xing)。采(cai)用(yong)聚(ju)氨(an)酯(zhi)泡(pao)沫(mo)塑(su)料(liao),不(bu)僅(jin)有(you)極(ji)好(hao)的(de)隔(ge)熱(re)性(xing)能(neng),而(er)且(qie)泡(pao)沫(mo)內(nei)的(de)細(xi)氣(qi)泡(pao)各(ge)自(zi)獨(du)立(li)互(hu)不(bu)溝(gou)通(tong),即(ji)材(cai)料(liao)的(de)閉(bi)孔(kong)率(lv)極(ji)高(gao),因(yin)此(ci),具(ju)有(you)很(hen)好(hao)的(de)隔(ge)氣(qi)和(he)氣(qi)密(mi)性(xing)能(neng)。所(suo)以(yi)一(yi)層(ceng)聚(ju)氨(an)酯(zhi)泡(pao)沫(mo)塑(su)料(liao)結(jie)構(gou),可(ke)同(tong)時(shi)起(qi)到(dao)氣(qi)密(mi)、隔氣、隔熱等三方麵作用。這種材料還可預製成板材在現場鋪設,也可直接在現場噴塗,並可加入適量的石棉、氧化矽、bolixianweihepengzhangzhenzhuyandengzuotianchongliao。qitiaokuyingjuyouyidingdeqimixing,danshibingfeiyaoqiujueduimifeng,zhezaishijishengchanzhongyeshinanyishixiande。congjishushanglaishuo,kuneizhuzangwutixiaohaodeyangqiduoyulourudeyangqi,jiukerenweiqimixinglianghao。yibandejingyanbiaozhunshi,xiangkufangchongqihuochouqierzaocheng10毫米水柱的正壓或負壓,30分鍾內不恢複到零即為合乎要求。
氣調庫的氣調設備主要有能降氧的氮氣發生器、二氧化碳脫除器。目前使用的氮氣發生器有4種類型:燃燒式製氮機、碳分子篩製氮機、空kong心xin纖xian維wei膜mo製zhi氮dan機ji和he裂lie解jie氨an製zhi氮dan機ji。二er氧yang化hua碳tan的de脫tuo除chu過guo去qu常chang用yong消xiao石shi灰hui吸xi收shou,對dui小xiao量liang貯zhu藏zang產chan品pin可ke以yi使shi用yong,而er大da型xing的de氣qi調tiao庫ku中zhong就jiu不bu能neng使shi用yong。活huo性xing炭tan吸xi附fu脫tuo除chu二er氧yang化hua碳tan是shi目mu前qian國guo內nei外wai較jiao常chang用yong的de方fang法fa。此ci外wai可ke用yong水shui和he氫qing氧yang化hua鈉na溶rong液ye脫tuo除chu二er氧yang化hua碳tan。脫tuo除chu乙yi烯xi氣qi體ti也ye是shi非fei常chang重zhong要yao的de,通tong常chang使shi用yong活huo性xing炭tan、高猛酸鉀溶液或高錳酸鉀製成的粘土顆粒和高溫催化方式脫除乙烯。
2. 塑料薄膜小包裝氣調
jiangsuliaobomoyazhichengdai,jiangguoshizhuangrudainei,zhajindaikou,jichengweiyigemibidezhuzangchangsuo。suliaodaikeyizhijieduifangzailengzangkuhuotongfengzhuzangkuneijiashang,yekeyijiangdaifangrukuang(箱)內,再將果筐(箱)堆碼成垛進行貯藏。還有的將果筐裝入塑料袋內,再紮緊袋口,然後放在庫內貯藏。按其管理方法不同,可分為下列三種:
(1)定期調節或放風:密封袋多用0.05~0.07毫米厚的聚乙烯塑料薄膜袋製成,袋長100厘米,寬80厘米。每袋裝果蔬15~20gongjin。youyukaodaineiguoshudehuxizuoyong,jiangdaineideyangqijiangdi,eryanghuatanzhujianzengjia。dangqitichengfenchaoguoyaoqiuzhibiaoshi,jiangdaikoudakaifangfeng,genghuanxinxiankongqi,zaizhakoufengbi。
(2)不進行調氣:塑料薄膜袋厚度0.025~0.03毫(hao)米(mi)。這(zhe)種(zhong)薄(bo)膜(mo)很(hen)薄(bo),上(shang)有(you)透(tou)乞(qi)性(xing),在(zai)不(bu)太(tai)長(chang)地(di)時(shi)間(jian)內(nei),可(ke)以(yi)維(wei)持(chi)適(shi)當(dang)的(de)低(di)氧(yang)和(he)較(jiao)高(gao)的(de)二(er)氧(yang)化(hua)碳(tan)而(er)不(bu)致(zhi)達(da)到(dao)有(you)害(hai)的(de)程(cheng)度(du),因(yin)此(ci),不(bu)必(bi)進(jin)行(xing)調(tiao)氣(qi)或(huo)放(fang)風(feng)。這(zhe)種(zhong)方(fang)法(fa)適(shi)用(yong)於(yu)短(duan)期(qi)貯(zhu)藏(zang)、長途運輸或零售。
(3)矽窗袋貯藏法:jiangguixiangjiaobomoxiangqianzaisuliaobomodaishang。liyongguixiangjiaojuyoudeteshutouqixingneng,shidaineidegaoeryanghuatantongguoguixiangjiaochuangxiangwaishentou,waibudeyangxiangneishentou。qishentoubiwei6:1,從而起到自到調節的作用。
(五) 其他方法貯藏保鮮
1. 電磁處理
(1) 高頻磁場處理:產品放在或通過電磁線圈的磁場中,直接受到磁力線的影響。
(2)高壓電場處理:產品放在或通過金屬極板組成的高壓電場中。可能有這樣一些作用:①電場的直接作用;②高壓放電形成離子空氣作用;③放電形成臭氣的作用,等等。
(3)離子空氣和臭氧處理:chanpinbuzhijiechuzaidianchangzhong,ershishigaoyafangdianxingchengdelizikongqihechouyangchulichanpin。jubaodao,fulizikongqiduiyixieguoshuyouyizhishenglihuoxingdexiaoying。zhenglizikongqizechangqicujinzuoyong。chouyangshiqiangyanghuaji,chuxiaodufangfuzuoyongzhichukenenghaiyouqitashenglixiaoying。
電磁處理用於果蔬貯藏,目前尚在試驗階段,一些裝置還不定型,作用機理更有待進一步探討。
2.減壓貯藏
guoshudejianyazhuzangshixiandaidezhuzangfangfazhiyi。jianyazhuzangdejishuyaodianshi,chanpinzhiyumibishinei,congmibishichouchubufenkongqi,shineibuqiyajiangdaoyidingchengdu,bingzaizhuzangqijianbaochihengdingdediya。jianyazhuzangyekeyishuoshiyizhongteshudeqitiaozhuzangfangfa。zaijianyazhuzangzhong,duiyangqilianghexiangduishidudekongzhibiputongdeqitiaozhuzanggengweijingque。
3.輻射處理
輻射貯藏技術,主要是利用60鈷(60Co)或137銫(137CS)發生的伽瑪(γ)射線,或由能量在10MeV(百萬電子伏)以下的電子加速器產生的電子流。γ射(she)線(xian)是(shi)穿(chuan)透(tou)力(li)很(hen)強(qiang)的(de)一(yi)種(zhong)射(she)線(xian),當(dang)它(ta)穿(chuan)過(guo)生(sheng)物(wu)有(you)機(ji)體(ti)時(shi),會(hui)使(shi)其(qi)中(zhong)的(de)水(shui)和(he)其(qi)它(ta)物(wu)質(zhi)電(dian)離(li),生(sheng)成(cheng)遊(you)離(li)基(ji)或(huo)離(li)子(zi),從(cong)而(er)影(ying)響(xiang)到(dao)機(ji)體(ti)的(de)新(xin)陳(chen)代(dai)謝(xie),嚴(yan)重(zhong)時(shi)則(ze)殺(sha)死(si)細(xi)胞(bao)。電(dian)子(zi)流(liu)穿(chuan)透(tou)力(li)較(jiao)弱(ruo),但(dan)也(ye)能(neng)起(qi)電(dian)離(li)作(zuo)用(yong),從(cong)食(shi)品(pin)保(bao)藏(zang)角(jiao)度(du)來(lai)講(jiang),輻(fu)射(she)處(chu)理(li)就(jiu)是(shi)利(li)用(yong)電(dian)離(li)輻(fu)射(she)引(yin)起(qi)的(de)殺(sha)蟲(chong)、殺菌、防黴、調節生理生化等效應。
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