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Determination of carotenoid contents in three vegetables Kolitis (Amaranthus spinosus), Lupo (Alternanthera sessilis), and Tugabang (Corchorus olitorius)
This study aimed to determine the presence of carotenoids in three vegetable samples Kolitis (Amaranthus spinosus), Lupo (Alternanthera sessilis), and Tugabang (Corchorus olitorius). The carotenoids were extracted using absolute ethanol and determined using UV/Vis spectroscophotometer. The absorption of B-carotene, Astaxanthin, Lycopene and Zeaxanthin were read at wavelength of 450, 466, 471, and 478 nm respectively. From the results, it was found that kolitis had 23.3 pg/g of B-carotene, 76.7 pg/g Astaxanthin, 46.6 pg/g Lycopene, and 83.3 pg/g Zeaxanthin. Tugabang had 21.0 pg/g B-carotene, 76.1 pg/g Astaxanthin, 46.7 pg/g Lycopene, and 71.4 pg/g Zeaxanthin. Lupo had 23.1 pg/g B-carotene, 76.7 pg/g Astaxanthin. 48.1 pg/g Lycopene, and 72.2 pg/g Zeaxanthin. Many antioxidant products are being sold in the market. However, it is uncertain if all of them are effective and safe. Based on the result of this study, it is recommended to include kolitis, tugabang, and lupo in the diet to obtain carotenoids which is a source of vitamin A....
Phytochemical contents of Swietenia mahogani leaves and winged seeds
The general objective of this study was to determine the phytochemical contents of mahogany leaves and winged seeds. Ethanol extracts of mahogany winged seeds and leaves underwent qualitative tests for anthraquinones and ...
A comparative study on the top visible dewlap (TVD) leaf nutrient content of eight sugarcane varieties grown for six and eight months
For the past thirty years the Sugar Regulatory Administration, including the defunct Philsugin and Philsucom, have been equipped only to use soil testing as the main basis for fertilizer recommendation. This system of ...
A comparative study of the rate of decomposition of ascorbic acid in stored and preserved pepper (Capsicum annum) using rice hull as retardant
Peppers are rich in vitamins especially vitamin C and minerals like calcium, phosphorus, iron and a pungent ingredient known as capsaicin. Peppers are used as condiment and extensively in flavoring meats such as sausages ...