Determination of flavonoids, total carotenoids content and vitamin C of Cucurbita moschata, Limnocharis flava and Lasia spinosa

Pun, Sit Wan (2009) Determination of flavonoids, total carotenoids content and vitamin C of Cucurbita moschata, Limnocharis flava and Lasia spinosa. Universiti Malaysia Sabah. (Unpublished)

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Abstract

The study was conducted to determine flavonoids (quercetin, kaempferol and catechins), total carotenoids content and vitamin C in leaves and stems of selected edible plants, Cucurbita moschata, Limnocharis flava, Lasia spinosa and was compared to cultivated plant. Selected edible plants were collected from local market in Kota Kinabalu. Flavonoids content were extracted by using methanol solvent and determined by HPLC analysis. Total carotenoid content were extracted by using acetone solvent whereas 5% meta-phosphoric acid used to extract vitamin C. Both compounds were analyzed by using spectrophotometer. The highest flavonols content was in Cucurbita moschata (17.73mg/100g quercetin and 7.49mg/100g kaempferol) whereas the Lasia spinosa was detected with the most catechins levels (114.29 mg/100g ECG, 523.17mg/100g CA, 793.36mg/100g EC, 383.63mg/100g EGCG, and 103.34mg/100g ECG) and followed by Cucurbita moschata with catechins range from 4.36 to 205.67mg/100g. Then, level of total carotenoids content was ranged from 168.74mg/100g (Limnocharis flava) to 1304.73mg/100g (Brassica chinensis var parachinensis). Lasia spinosa recorded highest concentration (103.74mg/100g) of vitamin C and followed by Cucurbita moshata (55.25mg/100g). In conclusion, edible plants Cucurbita moschata and Lasia spinosa can be potential sources of natural antioxidants for human nutrition.

Item Type: Academic Exercise
Uncontrolled Keywords: Flavonoids, Carotenoids content, Vitamin C, Cucurbita moschata, Limnocharis flava, Lasia spinosa
Subjects: ?? QK710-899 ??
Divisions: SCHOOL > School of Food Science and Nutrition
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 08 Jun 2012 07:41
Last Modified: 23 Oct 2017 03:49
URI: http://eprints.ums.edu.my/id/eprint/4212

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