• Korean Journal of Food Science and Technology
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• v.30 no.5
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• pp.1158-1162
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• 1998

Effects of addition of sorghum flour on the quality properties of wheat flour muffin were investigated. Initial pasting temperature and peak viscosity on amylograph increased with the concentrations of sorghum flour added, but final viscosity decreased. The lightness values decreased with the increase of sorghum flour contents in muffin, but redness values increased. The sorghum flour addition at 10% level did not affect the volume of muffin, but the volume of muffin containing 30% sorghum flour was significantly decreased compared to that of control. Most of texture parameters such as hardness, adhesiveness, gumminess and chewiness were not affected by the addition of sorghum flour up to 20% level. As results of sensory evaluation, appearance and flavor of muffins by addition of sorghum flour differed significantly from the control, but there were no differences among the muffins containing sorghum flour at 10, 20, and 30% levels. Texture of 10% sorghum flour muffin was similar to that of the control, but there was a significant difference in texture by 30% sorghum flour addition. However, taste and overall acceptability did not differ significantly up to 30% level.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.8
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• pp.1181-1188
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• 2014

This study investigated the quality characteristics and antioxidant activities of Yukwa added with 'Donganme' sorghum bran powder and its extracts. 'Donganme' variety has the highest antioxidant activity among sorghum varieties in Korea. The added contents of sorghum bran to Yukwa were 1% and 5% bran powder of 'Donganme' (BPD 1% and 5%) as well as 0.1%, 0.5%, and 1% bran powder extracts of 'Donganme' (BED 0.1%, 0.5%, and 1%). The contents of protein, ash, and minerals of BPD 1% and 5% added Yukwa were higher compared to non-added and BED 0.1%, 0.5%, and 1% added Yukwa. The contents of flavonoids of BPD 1% and 5% as well as BED 0.1%, 0.5%, and 1% added Yukwa increased by 1.6~17.1 fold, and DPPH and ABTS radical scavenging activities increased by 1.8~7.4 fold and 2.3~13.6 fold, respectively, compared to non-added Yukwa. Yukwa added with BED 1% showed the highest antioxidant activity among the treatments, followed by BPD 5%, BED 0.5%, BPD 1%, and BED 0.1% added Yukwa. The expansion ratios of BPD 5% and BED 1% added Yukwa remarkably decreased compared to those of non-added and other treatments. The sensory evaluation values corroborated the results of the Yukwa expansion ratio. The acid values of Yukwa under high temperature storage ($60{\pm}1^{\circ}C$) increased rapidly after 20 days in all treatments, and those of BPD 5% and 1% added Yukwa increased slowly compared to non-added Yukwa. ABTS radical scavenging activities of Yukwa showed little change during storage in all treatments. As a results, addition of sorghum bran below BPD 1% and BED 0.5% was suitable for antioxidant activity, quality characteristics and sensory evaluation.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.8
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• pp.1227-1235
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• 2013

This study was conducted in order to investigate the quality characteristics and antioxidant activities of dry noodles with addition of sorghum (Sorghum bicolor L. Moench) flour from glutinous and non-glutinous varieties. The sorghum varieties used in this study were glutinous 'Hwaggumchal' and non-glutinous 'Donganme', and the contents added to noodles were 'Hwaggumchal' 5%, 'Hwaggumchal' 10%, 'Donganme' 5%, and 'Donganme' 10%. The turbidity of soup of cooked noodles was increased by addition of sorghum flour. The cooking loss of 'Hwaggumchal' flour added noodles (HFN) was greater than that of 'Donganme' flour added noodles (DFN), reflecting endosperm characteristics. Phenolic compounds such as polyphenol, flavonoid, and tannin contents and antioxidant activity of sorghum flour added noodles were increased in proportion to the amounts of added sorghum flour. In the added varieties, DFN showed greater amounts of phenolic compounds and higher levels of DPPH and ABTS radical scavenging activities than HFN. The DPPH and ABTS radical scavenging activities of 5~10% DFN were increased by 4.6~6.2 fold and 10.5~13.4 fold, respectively, compared to non-added noodles. Regarding cooking effects, DPPH and ABTS radical scavenging activities of sorghum flour added noodles were increased by 10.9~11.2% after cooking. In sensory evaluation, color and appearance value were highest in HFN, and no differences in taste and overall acceptability were observed among treatments.

• Journal of The Korean Society of Grassland and Forage Science
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• v.30 no.1
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• pp.9-14
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• 2010

This experiment was carried out to know adaptability and forage production and quality of sorghum and sorghum $\times$ sudangrass and sudangrass hybrids at paddy field from 2007 to 2008 at Chungnam province. Among growth characters, 'Sordan 79' hybrid was somewhat strong for waterlogging, and higher sugar content and good at the 2nd regrowth, disease and insect resistance. Fresh yield of 'Sordan 79' hybrid was the highest as 92,492 kg per ha among 10 Sorghum and Sorghum $\times$ Sudangrass hybrids. The dry yield of 'Sordan 79' hybrid was also the highest as 21,090kg per ha. The result of this study showed that 'Sordan79' hybrid had good growth characters and forage productivity and crude protein (CP) and in vitro dry matter digestibility (IVDMD) at paddy field in middle region of South Korea.

• Journal of The Korean Society of Grassland and Forage Science
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• v.37 no.1
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• pp.92-99
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• 2017

This experiment was carried out to compare the growth characteristics and productivity between sudangrass and sorghum-sudangrass hybrid under the same cultivation condition in Cheonan and Kimje of Korea from 2010 to 2011. Sudangrass hybrids(Choice, Sunstar and Piper) and sorghum-sudangrass hybrids(SX-17, Jumbo and Revolution) were planted $5^{th}$ May in Cheonan and $7^{th}$ May in Kimje. Heading date of sudangrass hybrids was $12^{th}$ July which was about 2 week fast more than that of sorghum-sudangrass hybrids. Stem diameter of sudangrass hybrids was about 6mm which was about 5 mm smaller than that of sorghum-sudangrass hybrids. Disease resistance of sudangrass hybrid, "Choice" was similar to that of sorghum-sudangrass hybrids. Dry matter yield of "Choice" was 15ton/ha which was 10% less than that for sorghum-sudangrass hybrids(SX-17). Feed value of "Choice" was similar or slightly lower than that of sorghum-sudangrass. For increasing the productivity in forage cropping systems all around year, sudangrass hybrid is recommended for prolong by the middle ten day of May in the harvesting time of italian ryegrass.

• The Korean Journal of Food And Nutrition
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• v.23 no.2
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• pp.226-232
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• 2010

새로운 항치매성 건강식품을 개발하기 위해 아세틸콜린에스터레이즈(AChE)를 강력하게 저해하는 추출물을 곡류와 두류의 다양한 추출물로부터 선발한 후 최적 추출 조건을 조사하였다. 추출물 중 수수 메탄올 추출물이 63.4%의 가장 높은 AChE 저해 활성을 보였다. 수수를 80% 메탄올로 $40^{\circ}C$에서 12시간 추출했을 때 최대의 AChE 저해 활성을 나타내었다. AChE를 저해하는 수수 메탄올 추출물의 영양성과 생리 기능성을 조사하였다. 메탄올 추출물은 유리당으로 고형물 100 g당 4.78 g의 포도당과 4.13 g의 자당 및 0.97 g의 과당을 함유하였다. 또한, 수수 메탄올 추출물의 고형물 100 g에 linoleic acid 273.82 mg, oleic acid 215.65 mg, palmitic acid 122.03 mg, stearic acid 4.96 mg을 함유하고 있었고, 주요 유기산으로 주석산 27.45 mg, 말론산 15.43 mg, 사과산 9.94 mg이 메탄올 추출물 1 g에 함유되어 있었다. 수수 메탄올 추출물은 항치매 활성 외에도 콜레스테롤 합성을 저해하는 HMG-CoA reductase 저해 활성이 50.2%이었고, 항산화 활성은 56.1%를 보였다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.39 no.1
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• pp.73-78
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• 1994

This experiment was carried out to investigate the major characteristics associated with the flavor rate and their changes according to days after silking of super sweet corn(Cocktail 86) for vegetable and waxy corn(Chalok 1). Ear elongation finished around 22∼24 days after silking. In kernel development, elongation was much more prominant in super sweet corn than that in waxy corn but thickness was vice versa. Pericarp thickness and kernel hardness of super sweet corn were slightly increased but those of waxy corn were increased rapidly as the ears matured. Moisture and sucrose content of super sweet corn remained high but the waxy corn was not. The reducing sugars(glucose, fructose) were relatively high at the early maturity stage but they were decreased as the ears matured and negatively correlated with sucrose and flavor rate. Soluble solids (Brix %) were positively correlated with sucrose and total sugar(sucrose+ glucose+fructose) content in waxy corn but not in super sweet corn and was considered as inappropriate criate criterion to envaluate the sugar content and flavor rate. Pericarp thickness and sucrose content were positively correlated with the flavor rate in both hybrids but total sugar content, and kernel hardness were positively correlated with flavor rate in super sweet corn and waxy corn respectively.

• Journal of the Korean Society of Food Science and Nutrition
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• v.44 no.8
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• pp.1219-1225
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• 2015

This study was carried out to compare quality characteristics and physiological activities of Korean traditional wines fermented by addition of puffed sorghum powder. Using a two-step brewing process for fermented wines, pH, acidity, ethanol, color, tannin, ${\alpha}-glucosidase$ activities, antioxidant, and reducing sugar levels as well as sensory evaluation were measured during fermentation at 2-day intervals until day 8. The pH levels of fermented wines ranged from 4.07 to 5.53, and acidity ranged from 0.13 to 0.86. On the last day of fermentation, alcohol contents of control, raw sorghum, steamed sorghum, and 25, 50%, and 100% puffed sorghum were 16.8%, 11.7%, 13.4%, 16.5%, 15.2%, and 16.4%, respectively. The reducing sugar and ${\alpha}-glucosidase$ activities of puffed sorghum fermented wines were relatively higher than those of the control group, whereas those of steamed sorghum were lowest. As puffed sorghum powder content increased, antioxidant activity significantly increased. In the results of the sensory evaluation, overall preference of 50% puffed sorghum fermented wines was highest among the samples. The results of this study show that physiological activity and quality characteristics of fermented wines containing puffed sorghum powder contribute to value added improvement of sorghum processing.

• The Journal of Natural Sciences
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• v.19 no.1
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• pp.45-55
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• 2008

Alzheimer's disease is charaterized by the acetylcholine depletion, amyloid b-protein aggregation and neurofibrillary tangles. The prevention of the breakdown of acetylcholine by acetylcholinesterase (AChE) inhibitor has the best clinically therapeutic efficacy for Alzheimer's disease patients. To develop new antidementia alternative drugs or nutraceuticals, methanol extracts of Sorghum bicolor was screened from various extracts of cereals and legumes as a potent AChE inhibitor-containing extract in previous paper. In this paper, physicochemical properties of the methanol extracts was investigated. The methanol extracts was soluble by water, methanol and DMSO and had 215 nm and 282nm of maximum absorption spectra. It was also stable at 20-$100^{\circ}C$ and pH 2.0-10.0 for 1 hr. Test product was prepared by using methanol extracts from Sorghum bicolor and changes of its quality during storge at $20^{\circ}C$ and $40^{\circ}C$ were investigated. It was very stable for 8 weeks at $40^{\circ}C$.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.59 no.3
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• pp.245-251
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• 2014

Sorghum seed is traditionally used as health supplements and the secondary food mixed with rice in Korea. While the research of reserve protein in sorghum seed have been carried out in many countries used as major food, much less is known about reserve proteins of Korean local sorghum seeds. To obtain protein characteristics in 20 Korean local sorghum seed, quantitative content of reserve protein was determined after fractionation by modified 'Osbone' method and ${\alpha}$-kafirin of prolamin was determined by SDS-PAGE. Mean albumin, globulin, prolamin and glutelin contents based on total seed protein content of 20 Korean local sorghum seed were 6.2%, 0.9%, 57.9% and 35.1%, respectively. Sorghum cultivar with high prolamin were 'Whin-susu', 'Whin-Chalsusu', 'Whanggeum-Chalsusu', and 'Daepungshushu'. Sorghum cultivar with high ${\alpha}$-kafirin were 'Whin-susu', 'Geumsan-Chalsusu', 'Whin-Chalsusu', and 'Jangmok-susu'. Among the 20 varieties, 'Whin-susu' and 'Whin-Chalsusu' were selected as high ${\alpha}$-kafirin and prolamin sorghum cultivar, which showed 64.5 and 71.9% of prolamin contents, respectively.