Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage

Changes in nitrate and nitrite contents (leaves and stem) of Amaranthus gangeticus (AG) and Amaranthus paniculatus (AP), resulting from blanching, storage time (0-4 days), storage temperature (0 and 4ºC), and reheating were analysed.Results showed that fresh AG (1859 ± 7.07 mg/kg) had higher nitrit...

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Main Authors: Chew SC, K. Nagendra Prasad Yang Bao, Amin Ismail
Format: Article
Language:English
Published: Penerbit UKM 2011
Online Access:http://journalarticle.ukm.my/3601/
http://journalarticle.ukm.my/3601/
http://journalarticle.ukm.my/3601/1/Changes_in_Nitrate_and_Nitrite_Levels_of_Blanched_Amaranthus_During.pdf
id ukm-3601
recordtype eprints
spelling ukm-36012016-12-14T06:34:55Z http://journalarticle.ukm.my/3601/ Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage Chew SC, K. Nagendra Prasad Yang Bao, Amin Ismail, Changes in nitrate and nitrite contents (leaves and stem) of Amaranthus gangeticus (AG) and Amaranthus paniculatus (AP), resulting from blanching, storage time (0-4 days), storage temperature (0 and 4ºC), and reheating were analysed.Results showed that fresh AG (1859 ± 7.07 mg/kg) had higher nitrite content than AP (1262 ± 2.12 mg/kg). Nitrites content was 506 ± 2 and 825 ± 3.5 mg/kg for AG and AP, respectively. Reheating and storage times significantly increased the conversion of nitrate to nitrite in AG and AP. Storage at 0 and 4oC exhibited a significant change (P < 0.05) in nitrate and nitrite contents for both samples. Higher nitrite content was found in AP when stored at 4oC and 0oC. The present study indicated that storage time and temperature affected the nitrite contents in blanched AG and AP when stored in low temperatures. Apart from that reheating was also found to increase the formation of nitrite. Penerbit UKM 2011 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/3601/1/Changes_in_Nitrate_and_Nitrite_Levels_of_Blanched_Amaranthus_During.pdf Chew SC, and K. Nagendra Prasad Yang Bao, and Amin Ismail, (2011) Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage. Jurnal Sains Kesihatan Malaysia, 9 (1). pp. 29-34. ISSN 1675-8161 http://www.fsk.ukm.my/jurnal/jilid%209%281%29%202011/Chap%205_terbitan%209.1%20%282011%29.pdf
repository_type Digital Repository
institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
description Changes in nitrate and nitrite contents (leaves and stem) of Amaranthus gangeticus (AG) and Amaranthus paniculatus (AP), resulting from blanching, storage time (0-4 days), storage temperature (0 and 4ºC), and reheating were analysed.Results showed that fresh AG (1859 ± 7.07 mg/kg) had higher nitrite content than AP (1262 ± 2.12 mg/kg). Nitrites content was 506 ± 2 and 825 ± 3.5 mg/kg for AG and AP, respectively. Reheating and storage times significantly increased the conversion of nitrate to nitrite in AG and AP. Storage at 0 and 4oC exhibited a significant change (P < 0.05) in nitrate and nitrite contents for both samples. Higher nitrite content was found in AP when stored at 4oC and 0oC. The present study indicated that storage time and temperature affected the nitrite contents in blanched AG and AP when stored in low temperatures. Apart from that reheating was also found to increase the formation of nitrite.
format Article
author Chew SC,
K. Nagendra Prasad Yang Bao,
Amin Ismail,
spellingShingle Chew SC,
K. Nagendra Prasad Yang Bao,
Amin Ismail,
Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
author_facet Chew SC,
K. Nagendra Prasad Yang Bao,
Amin Ismail,
author_sort Chew SC,
title Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
title_short Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
title_full Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
title_fullStr Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
title_full_unstemmed Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
title_sort changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
publisher Penerbit UKM
publishDate 2011
url http://journalarticle.ukm.my/3601/
http://journalarticle.ukm.my/3601/
http://journalarticle.ukm.my/3601/1/Changes_in_Nitrate_and_Nitrite_Levels_of_Blanched_Amaranthus_During.pdf
first_indexed 2023-09-18T19:39:14Z
last_indexed 2023-09-18T19:39:14Z
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