Starch digestion and physiochemical properties of a newly developed rice variety with low glycemic index.

This study aimed to clarify the starch digestion characteristics and related physicochemical properties of the newly developed low-GI rice variety, Ditangliangyou 335 (D335), in comparison with two widely grown rice varieties, Xiangzaoxian 45 (X45) and Zhongzao 39 (Z39). The results showed that D335 had an active digestion duration (286 min) that was 101-190 % shorter, a glucose production rate (1.06 mg g min) that was 57-73 % slower, and a total glucose production (303 mg g) that was 11-19 % less than X45 and Z39.

How much does the carcinogenic risk of inorganic arsenic exposure from rice increase with higher brown rice consumption? An estimation for five regions around the world.

Substituting brown rice for white rice can increase the carcinogenic risk of inorganic arsenic (iAs) exposure, given that brown rice has a higher iAs content than white rice. This study estimated changes in the incremental lifetime cancer risk (ILCR) of iAs exposure from rice with increases in the proportion of brown to total rice consumption (PBT) in five regions around the world, including North America, Latin America, Europe, Asia, and Oceania. The results demonstrated that the magnitude of the increase in the ILCR of iAs exposure from rice expressed as an increase in PBT, ranged from 0.

Lysine content and its relationship with protein content in rice landraces of China.

Lysine is a limiting essential amino acid in rice. This study determined the variation in lysine content and evaluated the relationship between lysine and protein content in rice landraces of four provinces (Guangdong, Guangxi, Hunan, and Sichuan) in China by using the data ( = 654) collected from the Chinese Crop Germplasm Information System. Results showed that grain lysine content ranged from 0.