Ol nupela prut na kumu i save stap laip bihain long ol i kisim pinis, na ol i save pulim win na mekim ol strongpela wok bilong laip. Long wanpela sait, 'respiratory metabolism' i save kaikaim ol 'nutrients' na wara bilong ol prut na kumu, na dispela i save senisim lukluk na kwaliti bilong ol; long narapela sait, sik i kam long ol liklik binatang inap long mekim ol prut na kumu i bagarap. Olsem na, ol nupela prut na kumu i save drai, kwaliti bilong en i go daun, na bagarap taim ol i putim, karim i go, na salim, na dispela i save daunim pe bilong ol long kaikai.
Gutpela 'packaging' i no helpim tasol long lukautim ol nupela prut na kumu, daunim bagarap na mekim ol i stap longpela taim, tasol tu i pulim ol manmeri na promotim yusim bilong ol prodak. Plastik film em i nambawan samting we ol i save yusim long putim ol nupela prut na kumu. Em i gat ol gutpela samting olsem 'transparency', 'heat insulation', 'breathability', 'sealing', na liklik prais, na i gat bikpela sans long yusim long maket. Ol samting i kam bihain bai soim ol rot bilong lukautim ol nupela prut na kumu.
Ol 'high-density microporous polyethylene bags
Long ol yia i go pinis, ol i bin yusim dispela samting bilong putim long ol nupela prut long ol narapela kantri long putim long ol nupela prut. Long tingting bilong ol prut na pasin bilong ol long karim oksijen na kabon daioksait, ol i ken putim sampela 'micropores' (40μm) insait long 'film bag' bilong helpim 'gas exchange', daunim 'humidity' na ol 'volatile metabolites' insait long 'bag', na holim oksijen insait long 'bag' i stap antap tru (<1% O2). This prevents excessive oxygen concentration from causing anaerobic respiration, thereby avoiding the accumulation of large amounts of volatile substances such as ethanol and acetaldehyde, which would affect the flavor of the fruit. The oxygen concentration inside the film bag can generally be maintained at around 10-15%, and it is highly tolerant of carbon dioxide concentration, making it especially suitable for fruits and vegetables with high humidity, particularly tropical fruits. In other countries, these packaging bags are used to store "frozen" cherries, which can be preserved for 80 days in ordinary cold storage while maintaining the flavor and quality of the fruit.
Hai-oksijen modified paket
Em i wanpela nupela kain rot bilong putim ol samting insait long ol paket we i kamap long ol laspela yia. Mak bilong oksijen insait long ol beg we i gat bikpela oksijen long en i save stap long 70-100%. Dispela paket i gat ol dispela gutpela samting: (1) i pasim wok bilong ol 'enzyme' na i no larim ol prut na kumu i kamap braunpela; (2) i stopim 'anaerobic respiration' na i lukautim gutpela bilong ol prut na vegetable prodak; (3) i save pasim gut ol 'aerobic' na 'anaerobic' gro bilong ol liklik binatang na i save stopim 'rot', na long dispela as em i bin pulim planti luksave. Em i gutpela tru long lukautim ol nupela prut na kumu na ol nupela prut na kumu we ol i save kisim 'anaerobic respiration' na 'fermentation' aninit long bikpela kabon daioksait na liklik oksijen. Long wankain taim, ol i save makim 'combinetion ratio' bilong ol ges insait long beg bihainim ol pasin bilong ol narapela narapela prut na kumu.
Ol nupela samting bilong putim long ol samting we i save bagarap
Bikos long ol wari olsem longpela taim yusim bilong ol kemikel disinfektan bai bagarapim helt bilong ol manmeri na bagarapim envairomen, wantaim bikpela laik bilong ol plastik film paket na hevi bilong "wait polusen" i wok long gro, ol wok bilong ol manmeri long ol paket materiel i senis i go long sefti, nogat posin, na gutpela envairomen. Ol nupela 'biodegradable packaging materials' em i wanpela nupela bikpela toktok insait long intanesenel 'food packaging field'. Em i yusim kain kain 'biodegradable polymer materials' na putim ol 'biological bactericides', na i bungim planti wok olsem lukautim, bagarapim na lukautim envairomen. Dispela samting bilong putim long ol bokis em i isi long yusim, na em i gutpela tru long putim ol nupela prut na kumu na ol kaikai ol i kukim pinis, na i gat planti rot bilong yusim long wok bilong putim ol fres kaikai long bihain taim.
