Characterization of volatile aroma compounds in cooked black rice   总被引：2，自引：0，他引：2  

Yang DS  Lee KS  Jeong OY  Kim KJ  Kays SJ 《Journal of agricultural and food chemistry》2008,56(1):235-240

Black rice ( Oryza sativa L.), an aromatic specialty rice popular in Asia, has a unique flavor, the volatile chemistry of which has not been reported. The objectives of this research were to study volatile profiles of cooked black rice and to characterize the odor-active compounds. Thirty-five volatile compounds were identified by gas chromatography-mass spectrometry using a dynamic headspace system with Tenax trapping. Aldehydes and aromatics were quantitatively in the greatest abundance, accounting for 80.1% of total relative concentration of volatiles. The concentration of 2-acetyl-1-pyrroline (2-AP) was high, exceeded only by hexanal, nonanal, and 2-pentylfuran. A total of 25 odor-active compounds, determined by gas chromatography-olfactometry, were applied to principal component analysis, demonstrating significant differences between a black and a traditional white rice cultivar in terms of aroma and explaining 93.0% of the total variation. 2-AP, guaiacol, indole, and p-xylene largely influenced the difference between the aroma in cooked black and white rice. 2-AP and guaiacol were major contributors to the unique character of black rice based on odor thresholds, relative concentrations, and olfactometry.  相似文献   

Review of rice in Korea: current status,future prospects,and comparisons with rice in other countries     

Jeong  O-Young  Park  Hyeon-Su  Baek  Man-Kee  Kim  Woo-Jae  Lee  Geon-Mi  Lee  Chang-Min  Bombay  Maurene  Ancheta  Melanie Banzon  Lee  Jeom-Ho 《Journal of Crop Science and Biotechnology》2021,24(1):1-11

Journal of Crop Science and Biotechnology - Rice has been grown as a staple food in South Korea for several millennia. However, its status has not stayed constant as a result of changes in South...  相似文献   

Analysis of QTL responsible for grain iron and zinc content in doubled haploid lines of rice (Oryza sativa) derived from an intra-japonica cross     

O-Young Jeong  Jeom-Ho Lee  Eung-Gi Jeong  Areum Chun  Maurene Bombay  Melanie Banzon Ancheta  Sang Nag Ahn 《Plant Breeding》2020,139(2):344-355

Quantitative trait loci (QTL) related to the grain iron and zinc contents of brown rice were mapped by using a doubled haploid population derived from an intra-japonica cross between 'Hwaseonchal' and 'Goami 2'. QTL–QTL, background–QTL, and background–background interactions and candidate genes that affect grain iron and zinc contents were preliminarily identified. Twenty-one iron- and zinc-related QTL were found. The major-effect QTL qFe7 and qZn7 provided the highest contribution to phenotypic variance for grain iron and zinc contents. The colocation of zinc- and iron-related QTL on chromosomes 1, 4, 7 and 11 may account for the strong correlation between iron and zinc contents. A region on chromosome 7 and epistatic interaction between loci on chromosomes 2 and 10 affected iron content. qZn7 and qZn11.3 exerted additive effects on zinc content. Eleven iron- and zinc-related candidate genes colocated with qFe7, qZn7 and the region on chromosome 7 with an additive effect on iron content. The major-effect QTL identified here may be useful for breeding biofortified rice.  相似文献   

QTL for the iron and zinc contents of the milled grains of a doubled-haploid rice (Oryza sativa L.) population grown over two seasons     

Jeong  O-Young  Bombay  Maurene  Jo  Sumin  Ancheta  Melanie Banzon  Lee  Jeom-Ho 《Journal of Crop Science and Biotechnology》2020,23(4):291-299

Journal of Crop Science and Biotechnology - Identifying iron- and zinc-related quantitative trait loci (QTL) with consistent effects across environments and genetic backgrounds is necessary to...  相似文献