Sang-Ouk Shin

Identification and characterization of anthocyanins in yard-long beans (Vigna unguiculata ssp. sesquipedalis L.) by High-performance liquid chromatography with diode array detection and electrospray ionization/mass spectrometry (HPLC-DAD-ESI/MS) analysis.

Anthocyanins play an important role in physiological functions related to human health. The objective of this study was to investigate the profiles of anthocyanins in the immature purple pods and black seeds of yard-long beans ( Vigna unguiculata ssp. sesquipedalis L.) using high-performance liquid chromatography (HPLC) with diode array detection and electrospray ionization/mass spectrometry (DAD-ESI/MS) analysis. The individual anthocyanins were identified by comparing their mass spectrometric data and retention times. In the purple pods, five individual anthocyanins were identified: delphinidin-3-O-glucoside (2), cyanidin-3-O-sambubioside (4), cyanidin-3-O-glucoside (5), pelargonidin-3-O-glucoside (7), and peonidin-3-O-glucoside (8). From the black seed coat of the yard-long beans, seven anthocyanins were identified, including delphinidin-3-O-galactoside (1), cyanidin-3-O-galactoside (3), petunidin-3-O-glucoside (6), and malvidin-3-O-glucoside (9), together with compounds 2, 5, and 8. In this study, we report for the first time anthocyanin profiles for the pod and seed coat of yard-long beans.

Changes in anthocyanin and isoflavone concentrations in black seed-coated soybean at different planting locations.

This study assessed the altitudinal variations in the anthocyanin and isoflavone contents of six black seed coated soybean [Glycine max (L.) Merrill] cultivars. The black soybean cultivars Heugcheong, Seonheuk, Geomjeong 1, Geomjeong 2, Cheongja 2, and Cheongja 3 were planted at Milyang (12 m above mean sea level — low altitude) and Muju (600 m — high altitude), Korea on 10 June 2005 and 2006. The total anthocyanin and isoflavone contents and individual components were investigated by reverse-phase high performance liquid chromatography (HPLC). All black soybean cultivars cultivated in high altitude possessed significantly higher total anthocyanin (p < 0.01) and isoflavone (p < 0.01) contents than those grown in low altitude. For anthocyanin composition, cyanidin-3-O-glucoside, cyanidin-3-O-galactoside, and peonidin-3-O-glucoside contents were significantly higher while delphinidin-3-O-glucoside contents was significantly lower at high altitude. The composition of individual isoflavones, 6″-O-malonyldaidzin, and 6″-O-malonylgenistin contents significantly increased at high altitude.

A New Soy-paste Soybean Cultivar, ‘Daeha 1’ with Disease Resistance, Lodging Tolerance and High Yielding

A new soybean cultivar for soy-paste, ‘Daeha 1’, was developed by soybean breeding team in the Yeongnam Agricultural Research Institute (YARI) in 2008. A promising line, SS97214-S-S-S-15, was selected from the combination between ‘Suwon192’ and a pedigree came from cross combination between ‘Jangyeobkong’ and ‘Hwaeomputkong’. It was designated as the name of ‘Milyang 164’. It had good result from regional adaptation yield trial (RYT) for three years from 2006 to 2008 and released as the name of ‘Daeha 1’. It has a determinate growth habit, white flower, grey pubescence, yellow seed coat, yellow hilum, large spherical seed (25.4 grams per 100 seeds). ‘Daeha 1’ is tolerant to soybean mosaic virus and bacterial pustule, the major soybean disease in Korea. The average yield of ‘Daeha 1’ was 2.62 ton per hectare in the regional yield trial (RYT) carried out for three years from 2006 to 2008, which was 5 percent higher than that of check cultivar, ‘Taekwangkong’.

A New Soybean Variety, ‘Joongmo 3009’ with Green Cotyledon, Black Seed Coat, Disease Tolerant, and High Yield

A new soybean variety, ‘Joongmo 3009’ (Milyang 222) was developed at the National Institute of Crop Science (NICS) in 2012. ‘Joongmo 3009’ was released by pedigree selection from the cross between ‘Cheongja 2(Milyang 121)’ and ‘Daemangkong’. It has determinate growth habit, white flower, brown pubescence, brown pod color, green seed coat, green cotyledon, spherical seed shape, oval leaf shape and large seed size (29.3 grams per 100 seeds). It was late 16 days in maturing date than the check cultivar ‘Cheongjakong’. The average yield of ‘Joongmo 3009’ was 2.91 ton per hectare, which was higher 36 percentage than the check variety, in the regional yield trials carried out in three adaptable locations of Korea from 2010 to 2012. The number of breeder’s right is ‘5474’