Food and nutrition.pdf

Dried Fruits and Vegetables 243of off-flavours during storage. The properties of different packagingmaterials for dried foods are shown in Table.From the table, it can be seen that some types of packages providegood protection against air and roojs.~e, pickup for example, whereasother protect against light, crushing; ·~tc.' It is therefore common for driedfoods to be packed in airtight and moisture-proof bags, which are thenplaced in an o~~r~,~~t~ner' t)?)pt~t~! a~aiI\SJ.:U~N,:~shing, etc.Properties of Packaging Materials for Dried Fruits and Vegetablesinsects, "Moisture"Light, Air « ,Heat· Micro- ' . , Dust" Crnshing Animals &odoursorganismsClear glass 3 1 3 2 3 3 3 ,3 ., '.~olo¥red glass" . 3 ,,2. , ,3 ~, ,3'.1'3, ~, 3Ceramic P9t 1 ·,,3, 3 3 3 ,3 3 ,3, Metal tin , ", " .3 3' ,3 1 ., ,,3 3 3 .,3"Metal foil 2 3 2 1 2 3 1 1Pla~'tic' pot , 3 : :'3 c 3 2: ·3 3 2 2WOddel't'chest' . , ;2 , ·';,3 '1' ;3 I '. 3 3 ,2.Paper board(~ardbo'ard") box';~ibr~b~ard "d~'~~'t. j l' 3 1 3 '2 " 1.j ,,- .l' ~ 1 2 3 3 2",r;aR~; ~~£I 1 2 1 1 1 2 1 . i "Polythene film 2 1 1 1 2 3 1 l'i...)C~I~u19se Jih~ 3, 1 3 1 2 3 1 1If"Polypropylen~ film . ,3 1 3 1 2 3 1 iC0~tofl:0F: Jutf ~i1¢'" 1,, I"d , .'32 : ,1,;" J"J .2 ,1 ~" : ",'f,-",; ,