VITAMIN AND MINERAL CONTENT OF SIX NATIVE VARIETIES OF RICE IN THAILAND

Abstract

The objective of this research was to examine the vitamin and mineral contents present of the
native varieties of six rice varieties (Sangyod, Khaw kin, Mali nil surin, Khaw heniyw lum phaw, Khaw kla
heniyw and Thabthim chumphae) in Thailand. Results showed that Mali nil surin had the highest vitamin E
content (0.25 mg/100 g) and Khaw kin had higher iron (5.08 mg/100g) than that of other rice. Khaw kla heniyw
had high folic acid content (88 mcg/100g) and niacin content (4.12 mg/100g). Folic acid and niacin of Khaw
heniyw lum phaw had the lowest (9 mcg/100g and 3.11 mg/100g) while, Khaw kin and Khaw kla heniyw had
the lowest vitamin E and iron (0.09 and 0.30 mg/100g). While Khaw heniyw lum phaw had higher total
phenolic content and antioxidant capacity than that of the other sample at 212.42 µg Gallic acid/mL and 391.85
µg Trolox/mL, respectively. Thus, rice is a good source of nutritional and medicinal attributes and may be
developed of rice-based beauty products, functional foods, drugs, and natural food preservatives.