suoyoudechanpindouyaobeibaozhuang,suizhejingjidexunsufazhanheshenghuozhiliangdebuduantigao,woguoshipingongyefazhanxunmeng,renmendeshenghuolinianhexiaofeimoshizhengzaifashengzhongdabianhua,baozhuangzairenmenshenghuozhongyeyuelaiyuezhongyao,duishipinbaozhuangyetichulexindeyaoqiu,benshijishipinshichangdejingzhengzaihendachengdushangqujueyubaozhuangzhiliangdejingzheng。kexuejishutufeimengjin,shipinbaozhuangrixinyueyi,ershipinbaozhuanglinianyexianxianchuxintese,shipinbaozhuangyaoyiduoyanghuamanzuxiandairenbutongcengcidexiaofeixuqiu;無菌、方便、智能、個性化是食品包裝發展的新時尚;拓展食品包裝的功能、減輕包裝廢棄物對環境汙染的綠色包裝已成為新世紀食品包裝的發展趨勢。
1 無菌包裝
隨sui著zhe消xiao費fei者zhe對dui食shi品pin包bao裝zhuang保bao鮮xian功gong能neng提ti出chu的de更geng高gao要yao求qiu,改gai進jin食shi品pin包bao裝zhuang來lai延yan長chang食shi品pin的de新xin鮮xian便bian成cheng為wei許xu多duo廠chang商shang研yan究jiu的de重zhong要yao課ke題ti。目mu前qian,無wu菌jun保bao鮮xian包bao裝zhuang在zai各ge國guo食shi品pin工gong業ye中zhong最zui為wei盛sheng行xing,其qi應ying用yong不bu僅jin限xian於yu果guo汁zhi和he果guo汁zhi飲yin料liao,而er且qie也ye用yong來lai包bao裝zhuang牛niu奶nai、礦kuang泉quan水shui和he葡pu萄tao酒jiu等deng。英ying國guo已yi有you三san分fen之zhi一yi的de飲yin料liao使shi用yong無wu菌jun包bao裝zhuang。加jia拿na大da的de蘋ping果guo汁zhi已yi采cai用yong無wu菌jun處chu理li工gong藝yi。日ri本ben研yan製zhi以yi磷lin酸suan鈣gai為wei原yuan料liao的de礦kuang物wu濃nong縮suo吸xi水shui紙zhi袋dai,用yong於yu包bao裝zhuang蔬shu菜cai水shui果guo等deng食shi品pin,使shi蔬shu菜cai水shui果guo從cong礦kuang物wu濃nong縮suo液ye中zhong得de到dao營ying養yang供gong給gei,並bing吸xi收shou蔬shu菜cai水shui果guo釋shi放fang出chu的de乙yi烯xi氣qi體ti和he二er氧yang化hua碳tan( 抑製葉綠素的分解、起(qi)到(dao)維(wei)持(chi)鮮(xian)度(du)的(de)效(xiao)果(guo)。美(mei)國(guo)市(shi)場(chang)推(tui)出(chu)用(yong)天(tian)然(ran)活(huo)性(xing)陶(tao)土(tu)和(he)聚(ju)乙(yi)烯(xi)塑(su)料(liao)製(zhi)成(cheng)水(shui)果(guo)保(bao)鮮(xian)袋(dai),猶(you)如(ru)一(yi)個(ge)極(ji)細(xi)微(wei)的(de)過(guo)濾(lv)篩(shai),氣(qi)體(ti)和(he)水(shui)氣(qi)透(tou)過(guo)包(bao)裝(zhuang)袋(dai)流(liu)動(dong),使(shi)水(shui)果(guo)蔬(shu)菜(cai)的(de)保(bao)鮮(xian)期(qi)增(zeng)加(jia)1beiyishang,qiebaozhuangdaikeyizhongfushiyong,bianyuhuishou,jiageyebugaoyuputongsuliaodai。wujunbaozhuangzaishipinbaozhuangzhongsuozhandebilijiaoda,liruxiaodaiwujunnaiqijiagejiaobianyi,chanpinfengweihao,erqiezaichangwenxiabaocunshijianchang,shengchanchangjia、消xiao費fei者zhe很hen歡huan迎ying這zhe種zhong包bao裝zhuang產chan品pin,該gai產chan品pin不bu僅jin克ke服fu了le生sheng產chan地di域yu的de限xian製zhi,而er且qie還hai去qu掉diao了le運yun輸shu過guo程cheng中zhong所suo需xu的de冷leng鏈lian,有you利li於yu市shi場chang拓tuo展zhan。據ju統tong計ji,液ye體ti食shi品pin無wu菌jun包bao裝zhuang超chao過guo70%,全球每年消耗紙盒無菌包裝一千多億個。目前國內有各種無菌包裝設備約3000 多台套,年生產能力超過150萬噸。瑞典利樂、瑞士SIG 摩mo美mei包bao及ji美mei國guo國guo際ji紙zhi業ye公gong司si是shi稱cheng雄xiong紙zhi盒he無wu菌jun包bao裝zhuang領ling域yu的de三san巨ju頭tou。隨sui著zhe經jing濟ji的de發fa展zhan和he人ren民min生sheng活huo水shui平ping的de提ti高gao,對dui方fang便bian食shi品pin的de需xu求qiu勢shi必bi大da大da增zeng加jia,必bi將jiang會hui促cu進jin無wu菌jun包bao裝zhuang的de進jin一yi步bu發fa展zhan。
2 綠色包裝
綠色包裝是指對生態環境無汙染、對人體健康無害、能循環和再生利用的包裝。在人們對生態環境極為關注的今天,食品的綠色環保包裝也成為一種必需。據專家預測,未來10nianneilvseshipinjiangzhudaoshijieshichang,erlvsebaozhuangzeshilvseshipinzaixiaofeizhezhongjiandetongxingzheng,taduiyusuzaolvseshipinpinpaiyouzhezhongyaodeyiyi。congxietiaoshehuifazhanheshengtaihuanjingbaohuchufa,shijiegeguodoubajianliang、複fu用yong回hui收shou及ji可ke降jiang解jie作zuo為wei生sheng態tai環huan保bao包bao裝zhuang的de目mu標biao和he手shou段duan。在zai清qing華hua大da學xue和he中zhong科ke院yuan微wei生sheng物wu研yan究jiu所suo共gong同tong努nu力li下xia,已yi圓yuan滿man完wan成cheng了le用yong廢fei糖tang蜜mi為wei原yuan料liao生sheng產chan可ke生sheng物wu降jiang解jie塑su料liao聚ju羥qiang基ji丁ding酸suan酯zhi(PHB);用基因工程菌生產可生物降解塑料PHB;用水解澱粉為原料生產可生物降解塑料PHB及其共聚物PHBV( 以及可生物降解塑料PHB的改性和應用等研究成果。並在此基礎上實現了國際上首次規模化生產第三代PHA羥基丁酸共聚羥基已酸酯(PHBHHx),由微生物合成的生物可降解材料聚烴基脂肪酸PHA具有優良的生物可降解性、相容性、電壓性以及光活性,其結構的多樣性,加上由結構變化所帶來的新材料性能,使這種材料在食品包裝方向應用前景十分廣闊。德國PSPgongsijinqikaifachupaomozhishengchanxingongyi,yongtashengchandebaozhuangcailiaokedaitipaomocailiao。gaizhongpaomocaiyongjiubaozhihemianfenzuocailiao,xianjianghuishoudejiushubaoqiechengsuitiao,zainianchengxianweizhuangdezhijiang,jiangqihemianfenyi2比1debilihunhe,hunhehoudezhijiangzhurujiyayachengyuanzhukeli。jiyaguochengzhong,yuanliaoshoushuizhengqizuoyongchengweipaomozhi。yonggaizhongpaomozhizuoyuanliao,keyigenjubutongdexuyaoshengchanchuduozhongxingzhuangdesuliaobaozhuang。paomozhikeyicichengxing,buyonghuaxuetianjiaji,shiyonghouhainenghuishoujiagong。yunyongxiandaichaojifentijishu,jiangyuancailiaofensuicheng10~25微(wei)米(mi)之(zhi)間(jian)的(de)顆(ke)粒(li)稱(cheng)為(wei)超(chao)微(wei)粉(fen),近(jin)年(nian)來(lai)研(yan)究(jiu)發(fa)現(xian),利(li)用(yong)超(chao)微(wei)粉(fen)技(ji)術(shu)製(zhi)備(bei)澱(dian)粉(fen)基(ji)生(sheng)物(wu)降(jiang)解(jie)塑(su)料(liao)具(ju)有(you)明(ming)顯(xian)的(de)優(you)越(yue)性(xing)。超(chao)微(wei)澱(dian)粉(fen)粒(li)度(du)小(xiao),均(jun)勻(yun),具(ju)有(you)極(ji)大(da)的(de)比(bi)表(biao)麵(mian)積(ji),蓄(xu)含(han)巨(ju)大(da)的(de)表(biao)麵(mian)能(neng),使(shi)其(qi)流(liu)動(dong)性(xing)和(he)填(tian)充(chong)性(xing)得(de)到(dao)顯(xian)著(zhu)提(ti)高(gao),用(yong)於(yu)製(zhi)備(bei)生(sheng)物(wu)降(jiang)解(jie)塑(su)料(liao)時(shi)可(ke)有(you)效(xiao)地(di)改(gai)善(shan)材(cai)料(liao)的(de)力(li)學(xue)性(xing)能(neng),能(neng)夠(gou)在(zai)保(bao)證(zheng)材(cai)料(liao)使(shi)用(yong)性(xing)能(neng)的(de)前(qian)提(ti)下(xia),大(da)大(da)提(ti)高(gao)澱(dian)粉(fen)的(de)添(tian)加(jia)量(liang),這(zhe)對(dui)於(yu)降(jiang)低(di)成(cheng)本(ben),節(jie)約(yue)石(shi)油(you)資(zi)源(yuan),開(kai)發(fa)天(tian)然(ran)澱(dian)粉(fen)的(de)應(ying)用(yong),提(ti)高(gao)塑(su)料(liao)生(sheng)物(wu)降(jiang)解(jie)率(lv)都(dou)有(you)非(fei)常(chang)重(zhong)要(yao)的(de)意(yi)義(yi)。美(mei)國(guo)農(nong)業(ye)研(yan)究(jiu)局(ju)南(nan)部(bu)地(di)區(qu)中(zhong)心(xin)利(li)用(yong)大(da)豆(dou)蛋(dan)白(bai)質(zhi)、添加酶和其它處理劑製成大豆蛋白質包裝膜,用於食品包裝,能保持良好的水份、阻zu止zhi氧yang氣qi進jin入ru,與yu食shi品pin一yi起qi蒸zheng煮zhu,既ji易yi於yu降jiang解jie減jian少shao環huan境jing汙wu染ran,又you可ke避bi免mian食shi物wu的de二er次ci汙wu染ran。印yin度du尼ni西xi亞ya的de科ke學xue家jia,發fa明ming了le用yong水shui藻zao製zhi紙zhi板ban的de技ji術shu,用yong兩liang噸dun幹gan燥zao後hou的de水shui藻zao,就jiu能neng製zhi一yi噸dun紙zhi板ban。所suo製zhi成cheng紙zhi板ban的de質zhi量liang,並bing不bu次ci於yu普pu通tong的de紙zhi板ban。並bing已yi進jin行xing商shang品pin化hua生sheng產chan。
3 功能包裝
隨著包裝科技的迅速發展,近年來,國內外相繼開發出一批功能獨特、品種多樣的包裝新品,令人耳目一新,受到了消費者的青睞和經營者的關注。最近,美國FDA已批準將一種紫外線阻隔劑在美國食品包裝上應用。太陽光和倉庫的熒光燈含有紫外線,而該產品添加在透明PET包裝材料中的這種紫外線阻隔劑能有效阻隔紫外線,防止包裝內的物品在顏色、氣味、味(wei)道(dao)及(ji)營(ying)養(yang)價(jia)值(zhi)上(shang)有(you)任(ren)何(he)變(bian)化(hua)。透(tou)明(ming)的(de)包(bao)裝(zhuang)材(cai)料(liao),可(ke)讓(rang)消(xiao)費(fei)者(zhe)了(le)解(jie)產(chan)品(pin)的(de)質(zhi)量(liang)和(he)外(wai)觀(guan)等(deng)。日(ri)本(ben)一(yi)家(jia)公(gong)司(si)推(tui)出(chu)了(le)一(yi)種(zhong)可(ke)用(yong)於(yu)食(shi)品(pin)包(bao)裝(zhuang)的(de)防(fang)腐(fu)紙(zhi)。它(ta)的(de)製(zhi)作(zuo)工(gong)藝(yi)是(shi)先(xian)將(jiang)原(yuan)紙(zhi)浸(jin)入(ru)含(han)20%的琥珀酸、33%的琥珀酸鈉和0.07%的山梨酸的乙醇溶液中,然後對其進行幹燥。使用這種紙包裝帶鹵汁的食品,可以在38℃高溫下存放3周(zhou)而(er)不(bu)變(bian)質(zhi)。日(ri)本(ben)另(ling)一(yi)家(jia)公(gong)司(si)生(sheng)產(chan)一(yi)種(zhong)能(neng)長(chang)期(qi)防(fang)止(zhi)食(shi)品(pin)發(fa)黴(mei)變(bian)質(zhi)且(qie)不(bu)損(sun)害(hai)食(shi)品(pin)風(feng)味(wei)的(de)新(xin)型(xing)包(bao)裝(zhuang)紙(zhi)。該(gai)紙(zhi)是(shi)把(ba)特(te)別(bie)的(de)單(dan)甘(gan)油(you)脂(zhi)融(rong)合(he),溶(rong)於(yu)水(shui)與(yu)乙(yi)醇(chun)的(de)水(shui)溶(rong)液(ye),然(ran)後(hou)在(zai)紙(zhi)上(shang)進(jin)行(xing)噴(pen)塗(tu)或(huo)作(zuo)浸(jin)潤(run)處(chu)理(li)幹(gan)燥(zao)而(er)成(cheng)。可(ke)保(bao)持(chi)水(shui)果(guo)鮮(xian)度(du),可(ke)用(yong)來(lai)包(bao)裝(zhuang)各(ge)種(zhong)食(shi)品(pin)。綠(lv)顏(yan)色(se)食(shi)品(pin)中(zhong)大(da)都(dou)含(han)有(you)大(da)量(liang)的(de)葉(ye)綠(lv)素(su),而(er)這(zhe)種(zhong)色(se)素(su)在(zai)光(guang)照(zhao)射(she)下(xia)會(hui)發(fa)生(sheng)感(gan)光(guang)氧(yang)化(hua)反(fan)應(ying),導(dao)致(zhi)食(shi)品(pin)腐(fu)爛(lan)。德(de)國(guo)弗(fu)勞(lao)恩(en)霍(huo)夫(fu)處(chu)理(li)與(yu)包(bao)裝(zhuang)技(ji)術(shu)研(yan)究(jiu)所(suo)的(de)科(ke)學(xue)家(jia)戈(ge)爾(er)德(de)漢(han)最(zui)近(jin)發(fa)明(ming)了(le)一(yi)種(zhong)將(jiang)塑(su)料(liao)薄(bo)膜(mo)用(yong)葉(ye)綠(lv)素(su)以(yi)特(te)殊(shu)方(fang)法(fa)進(jin)行(xing)“ 染色”,jingguozhezhongchulihoudebomoyonglaibaozhuangshipinkeyifangzhilvyanseshipinzhongdeyelvsufashengyanghuazuoyong,dadayanchanglelvseshipindebaoxianqi。dangqian,zhuiqiuriyiwanmeidebaoxiangongnengyichengweishipinbaozhuangshouxuanmubiao。xinjiapoyanzhishengchanyizhongbaoxianbaozhuangzhi。zhezhongzhihanyijun、殺菌劑,用這種紙貯藏蘋果,半年後啟開,果實仍然飽滿。另一種保鮮紙能使柑橘保鮮3個月,使荔枝保鮮30多天。英德聯合開發了在容器和蓋子內壁采用除氧材料的包裝,通過這些除氧材料“吃掉”多餘的氧氣,以達到保鮮目的,延長產品貨架期。美國還推出了具有吸氧功能的複合蓋作為啤酒瓶蓋,可將啤酒的保質期從3~4個月延長到4~ 6個月。日本近期成功開發了一種可抑製二堊英產生的新型塑料複合包裝材料。這種材料是將pp與滑石粉高度均勻混製而成,然後經加熱成型後製成容器。此材料本身不會產生HCL等一些與二堊英產生有關的任何氣體,且在燃燒時能吸附固定其他廢棄物產生的HCL氣體,從而抑製二堊英的產生。美國科研人員在食品包裝袋中放上一層含有一種被稱為AIn090rb的化學物質的塑料薄膜,可清除包裝中的氧氣,使包裝的食物可長時間不變質。該化學物質在特殊光波照射之前, 一(yi)直(zhi)處(chu)於(yu)休(xiu)眠(mian)狀(zhuang)態(tai)。當(dang)接(jie)受(shou)特(te)殊(shu)光(guang)波(bo)照(zhao)射(she)後(hou),化(hua)學(xue)作(zuo)用(yong)才(cai)開(kai)始(shi)顯(xian)現(xian)。這(zhe)就(jiu)是(shi)說(shuo),在(zai)包(bao)裝(zhuang)食(shi)品(pin)時(shi),無(wu)需(xu)進(jin)行(xing)複(fu)雜(za)的(de)除(chu)氧(yang)處(chu)理(li),隻(zhi)要(yao)在(zai)食(shi)品(pin)包(bao)裝(zhuang)的(de)最(zui)後(hou)一(yi)道(dao)工(gong)序(xu),經(jing)特(te)殊(shu)光(guang)波(bo)照(zhao)射(she)即(ji)可(ke)。俄(e)羅(luo)斯(si)專(zhuan)家(jia)在(zai)包(bao)裝(zhuang)材(cai)料(liao)的(de)聚(ju)合(he)物(wu)中(zhong)添(tian)加(jia)了(le)脫(tuo)水(shui)的(de)酸(suan)化(hua)物(wu)、多duo種zhong礦kuang物wu鹽yan和he酶mei等deng物wu質zhi。富fu含han這zhe些xie物wu質zhi的de包bao裝zhuang袋dai的de表biao麵mian,可ke吸xi收shou所suo包bao裝zhuang食shi品pin中zhong多duo餘yu的de水shui分fen,殺sha滅mie細xi菌jun,從cong而er改gai善shan包bao裝zhuang袋dai的de內nei部bu環huan境jing。同tong時shi,添tian加jia物wu中zhong的de酶mei,還hai能neng調tiao節jie食shi品pin的de氣qi味wei,為wei食shi物wu中zhong的de營ying養yang成cheng分fen營ying造zao生sheng存cun空kong間jian。
4 智能包裝
智能包裝通常采用光電溫敏、濕敏、氣敏等功能包裝材料複合而成。它可以顯示包裝空間的溫濕度、壓力以及密封的程度、時shi間jian等deng一yi些xie重zhong要yao參can數shu。這zhe是shi一yi種zhong很hen有you發fa展zhan前qian途tu的de功gong能neng包bao裝zhuang。四si川chuan好hao東dong高gao科ke技ji股gu份fen有you限xian公gong司si最zui近jin成cheng功gong地di開kai發fa出chu一yi種zhong新xin穎ying的de防fang偽wei包bao裝zhuang薄bo膜mo。這zhe種zhong防fang偽wei包bao裝zhuang膜mo的de優you點dian在zai於yu其qi無wu色se透tou明ming, 對商品的包裝袋、紙盒、鐵盒、玻(bo)璃(li)瓶(ping)上(shang)麵(mian)的(de)圖(tu)案(an)不(bu)會(hui)產(chan)生(sheng)影(ying)響(xiang)。在(zai)光(guang)照(zhao)下(xia),能(neng)明(ming)顯(xian)地(di)顯(xian)示(shi)出(chu)無(wu)法(fa)仿(fang)冒(mao)的(de)激(ji)光(guang)全(quan)息(xi)圖(tu)案(an)和(he)文(wen)字(zi)。如(ru)果(guo)將(jiang)其(qi)用(yong)於(yu)商(shang)品(pin)自(zi)動(dong)化(hua)包(bao)裝(zhuang)生(sheng)產(chan)線(xian)上(shang),就(jiu)可(ke)以(yi)使(shi)得(de)商(shang)品(pin)的(de)整(zheng)體(ti)防(fang)偽(wei)效(xiao)果(guo)更(geng)加(jia)理(li)想(xiang)。這(zhe)種(zhong)新(xin)穎(ying)防(fang)偽(wei)包(bao)裝(zhuang)薄(bo)膜(mo)為(wei)無(wu)色(se)塑(su)料(liao)薄(bo)膜(mo),厚(hou)度(du)一(yi)般(ban)為(wei)10~100微米。薄膜上有由激光全息攝影特製的金屬版在其上壓印出的深淺各異的凹凸壓痕圖案和文字, 以及二維、三維幾何圖形,立體感強,層次分明。凹凸壓痕深度一般為。警示包裝可提示食品是否變質,由三個分離層組成:內(nei)層(ceng)為(wei)一(yi)多(duo)孔(kong)滲(shen)水(shui)層(ceng),它(ta)直(zhi)接(jie)與(yu)食(shi)物(wu)接(jie)觸(chu),如(ru)果(guo)食(shi)物(wu)感(gan)染(ran)了(le)某(mou)些(xie)能(neng)導(dao)致(zhi)疾(ji)病(bing)的(de)細(xi)菌(jun),這(zhe)些(xie)細(xi)菌(jun)就(jiu)能(neng)穿(chuan)過(guo)多(duo)孔(kong)滲(shen)水(shui)層(ceng),到(dao)達(da)中(zhong)間(jian)一(yi)層(ceng)。中(zhong)間(jian)層(ceng)中(zhong)含(han)有(you)一(yi)種(zhong)凝(ning)膠(jiao)體(ti),細(xi)菌(jun)能(neng)與(yu)這(zhe)種(zhong)凝(ning)膠(jiao)體(ti)中(zhong)的(de)一(yi)種(zhong)抗(kang)體(ti)發(fa)生(sheng)化(hua)學(xue)反(fan)應(ying),從(cong)而(er)改(gai)變(bian)顏(yan)色(se)。隨(sui)後(hou)細(xi)菌(jun)就(jiu)會(hui)進(jin)入(ru)最(zui)外(wai)層(ceng),與(yu)其(qi)表(biao)麵(mian)上(shang)的(de)另(ling)一(yi)種(zhong)抗(kang)體(ti)發(fa)生(sheng)作(zuo)用(yong),以(yi)X形狀散布開來, 讓rang食shi用yong者zhe能neng夠gou發fa現xian食shi物wu已yi變bian壞huai。澳ao大da利li亞ya包bao裝zhuang材cai料liao專zhuan家jia研yan製zhi出chu一yi種zhong新xin型xing電dian子zi警jing示shi包bao裝zhuang,當dang易yi腐fu敗bai的de食shi物wu在zai高gao溫wen下xia受shou熱re,其qi質zhi量liang已yi不bu能neng得de到dao保bao證zheng時shi,包bao裝zhuang上shang的de傳chuan感gan條tiao便bian改gai變bian顏yan色se,電dian子zi芯xin片pian即ji發fa出chu警jing報bao。電dian子zi包bao裝zhuang技ji術shu也ye能neng對dui缺que乏fa保bao鮮xian措cuo施shi的de食shi品pin出chu口kou商shang提ti供gong幫bang助zhu,廠chang商shang可ke通tong過guo衛wei星xing去qu跟gen蹤zong、監督運往海外的食品在運輸途中的溫度變化,使他們的產品能夠安全地出口到國外。瑞典—jiashengwugongsikaifazuizaoyongyuyundongyinliaodeyizhongzhinengbaozhuang。cibaozhuangdegaizikanshangquxianggeyundongtuilasuokou,yougaomidujuyixihejubingxizhizuo,juyousuliaotucengdelvzhaoneizhuangyoulengdongganzaowuzhi,tabeimifengzaigaidexiabu。pingzishi28mm瓶頸的PET瓶、在zai飲yin用yong時shi先xian取qu了le活huo塞sai套tao的de保bao護hu套tao或huo環huan,按an下xia蓋gai的de上shang部bu。當dang按an下xia蓋gai時shi有you一yi個ge機ji件jian把ba密mi封feng鋁lv箔bo刺ci破po,少shao量liang冷leng凍dong幹gan燥zao片pian進jin入ru飲yin料liao中zhong,搖yao動dong瓶ping子zi使shi冷leng凍dong幹gan燥zao片pian溶rong解jie在zai飲yin料liao中zhong並bing激ji活huo原yuan生sheng物wu,把ba蓋gai的de上shang部bu拉la回hui就jiu可ke飲yin用yong,喝he過guo後hou封feng閉bi。
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