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Modified atmosphere packaging of vegetables.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Modified atmosphere packaging of vegetables./
作者:	Mekwatanakarn, Weena.
面頁冊數:	1 online resource (178 pages)
附註:	Source: Dissertations Abstracts International, Volume: 60-12, Section: B.
Contained By:	Dissertations Abstracts International60-12B.
標題:	Food science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9921255click for full text (PQDT)
ISBN:	9780599204713

Modified atmosphere packaging of vegetables.
Mekwatanakarn, Weena.

Modified atmosphere packaging of vegetables. - 1 online resource (178 pages)

Source: Dissertations Abstracts International, Volume: 60-12, Section: B.

Thesis (Ph.D.)--Oregon State University, 1999.

Includes bibliographical references

Modified atmosphere packaging (MAP) has considerable potential to extend fresh produce postharvest life. Physiological properties of produce (e.g. variety, respiration rate, mold resistance), storage temperature, and film permeability are keys to success. While appearance may be good, off-odors from mold or anaerobiosis may limit quality of MAP produce. Four CRYOVAC films (PD940, PD941, PD955 and PD961), one microperforated film (Stepac XTEND120), and two controls: perforated bags (eight 6 mm holes) and bulk boxes were evaluated at two temperatures for passively creating MAP to extend storage life/quality of green beans, sweet corn and cauliflower. Five bean and two sweet corn varieties in MAP were evaluated for genetic factors on storage quality. PD941 was most effective, followed by PD961 compared to other films in retaining green bean storage quality at 5°C, and sweet corn and cauliflower at 0°C. XTEND120 film and vented controls had twice the weight loss of other films. Control green beans retained good quality for 7 days, whereas PD941 film had good quality after 21 days at 5°C. 'Hialeah' and 'Prosperity' were superior to 'Bronco', 'Derby' and '91G' green beans in PD941 at 5°C for 21 days. Sweet corn in PD941 film retained quality (sweetness) for two weeks. While sugars decreased during storage, values were still high after 14 days in both 'Sugar Buns' and 'Supersweet Jubilee'. Packages and temperature had little effect on sugars in 'Sugar Buns' sweet corn (se), but 'Supersweet Jubilee' sweet corn (sh2) was significantly affected by film type and temperature and had higher sugar concentration. Off-odors were detected in XTEND 120 packaged 'Sugar Buns' stored 14 days at 0° or 5°C, but none in 'Supersweet Jubilee'. Cauliflower retained quality longer in PD941 film at 0°C than other treatments, and no off-odors were detected up to 21 days. Cauliflower packed in PD955, PD961 and vented controls had off-odors 7 days at 5°C storage, but none at 0°C. Controls showed decay after 14 days storage at 0° and 5°C.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9780599204713Subjects--Topical Terms:

3173303
Food science.
Subjects--Index Terms:

Food storageIndex Terms--Genre/Form:

542853
Electronic books.

Modified atmosphere packaging of vegetables.
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500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Richardson, Daryl G.
502 $a Thesis (Ph.D.)--Oregon State University, 1999.
504 $a Includes bibliographical references
520 $a Modified atmosphere packaging (MAP) has considerable potential to extend fresh produce postharvest life. Physiological properties of produce (e.g. variety, respiration rate, mold resistance), storage temperature, and film permeability are keys to success. While appearance may be good, off-odors from mold or anaerobiosis may limit quality of MAP produce. Four CRYOVAC films (PD940, PD941, PD955 and PD961), one microperforated film (Stepac XTEND120), and two controls: perforated bags (eight 6 mm holes) and bulk boxes were evaluated at two temperatures for passively creating MAP to extend storage life/quality of green beans, sweet corn and cauliflower. Five bean and two sweet corn varieties in MAP were evaluated for genetic factors on storage quality. PD941 was most effective, followed by PD961 compared to other films in retaining green bean storage quality at 5°C, and sweet corn and cauliflower at 0°C. XTEND120 film and vented controls had twice the weight loss of other films. Control green beans retained good quality for 7 days, whereas PD941 film had good quality after 21 days at 5°C. 'Hialeah' and 'Prosperity' were superior to 'Bronco', 'Derby' and '91G' green beans in PD941 at 5°C for 21 days. Sweet corn in PD941 film retained quality (sweetness) for two weeks. While sugars decreased during storage, values were still high after 14 days in both 'Sugar Buns' and 'Supersweet Jubilee'. Packages and temperature had little effect on sugars in 'Sugar Buns' sweet corn (se), but 'Supersweet Jubilee' sweet corn (sh2) was significantly affected by film type and temperature and had higher sugar concentration. Off-odors were detected in XTEND 120 packaged 'Sugar Buns' stored 14 days at 0° or 5°C, but none in 'Supersweet Jubilee'. Cauliflower retained quality longer in PD941 film at 0°C than other treatments, and no off-odors were detected up to 21 days. Cauliflower packed in PD955, PD961 and vented controls had off-odors 7 days at 5°C storage, but none at 0°C. Controls showed decay after 14 days storage at 0° and 5°C.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Food science. $3 3173303
653 $a Food storage
653 $a Modified atmosphere
653 $a PD941
653 $a Packaging
653 $a Vegetables
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0359
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Oregon State University. $3 625720
773 0 $t Dissertations Abstracts International $g 60-12B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9921255 $z click for full text (PQDT)