• 제목/요약/키워드: food resources

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Effects of High Pressure Assisted and Shift Freezing Process on the Physical Properties of Pork Muscle

  • Park, Sung-Hee;Hong, Guen-Pyo;Kim, Jee-Yeon;Min, Sang-Gi
    • 한국축산식품학회:학술대회논문집
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    • 한국축산식품학회 2005년도 제36차 추계 학술발표대회
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    • pp.136-141
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    • 2005
  • In this research, PSF and PBF indicated beneficial influence on water binding ability of meat comparing to conventional freezing methods. High pressure in freezing process resulted some changes inhysical characteristics of pork: increment each color value, shear force and pH in PSF, PAF and PBF.

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Physicochemical Characteristics and Antioxidant Capacity in Yogurt Fortified with Red Ginseng Extract

  • Jung, Jieun;Paik, Hyun-Dong;Yoon, Hyun Joo;Jang, Hye Ji;Jeewanthi, Renda Kankanamge Chaturika;Jee, Hee-Sook;Li, Xiang;Lee, Na-Kyoung;Lee, Si-Kyung
    • 한국축산식품학회지
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    • 제36권3호
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    • pp.412-420
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    • 2016
  • The objective of this study was to investigate characteristics and functionality of yogurt applied red ginseng extract. Yogurts added with red ginseng extract (0.5, 1, 1.5, and 2%) were produced using Lactobacillus acidophilus and Streptococcus thermophilus and stored at refrigerated temperature. During fermentation, pH was decreased whereas titratable aicidity and viable cell counts of L. acidophilus and S. thermophilus were increased. The composition of yogurt samples was measured on day 1, an increase of red ginseng extract content in yogurt resulted in an increase in lactose, protein, total solids, and ash content, whereas fat and moisture content decreased. The pH value and cell counts of L. acidophilus and S. thermophilus were declined, however titratable acidity was increased during storage period. The antioxidant capacity was measured as diverse methods. During refrigerated storage time, the value of antioxidant effect was decreased, however, yogurt fortified with red ginseng extract had higher capacity than plain yogurt. The antioxidant effect was improved in proportion to concentration of red ginseng extract. These data suggests that red ginseng extract could affect to reduce fermentation time of yogurt and enhance antioxidant capacity.

Effects of Rice Bran Fiber on Quality of Low-fat Tteokgalbi

  • Choi, Yun-Sang;Choi, Ji-Hun;Han, Doo-Jeong;Kim, Hack-Youn;Lee, Mi-Ai;Lee, Eui-Soo;Jeong, Jong-Youn;Paik, Hyun-Dong;Kim, Cheon-Jei
    • Food Science and Biotechnology
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    • 제17권5호
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    • pp.959-964
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    • 2008
  • This study evaluated the effects of dietary fiber extracted from rice bran (rice bran fiber) on the quality of low-fat tteokgalbi. The controls were formulated with 20% added fat. Test samples of tteokgalbi were produced with 5 different formulations containing 1, 2, 3, 4, and 5% rice bran fiber as a fat replacer, in addition to 10% fat. The control had the highest fat content, energy value, cooking loss, reduction in diameter, reduction in thickness, CIE $L^*$-value (lighness), and color of sensory properties. The tteokgalbi containing rice bran fiber had higher moisture, protein, ash, and carbohydrate contents than the controls. Tteokgalbi with 3% rice bran fiber had the lowest cooking loss, reduction in diameter, and reduction in thickness. Meat products containing 2 and 3% rice bran fiber had a higher overall acceptability similar to the high fat control.

Effects of Various Salts on Physicochemical Properties and Sensory Characteristics of Cured Meat

  • Choi, Yun-Sang;Jeong, Tae-Jun;Hwang, Ko-Eun;Song, Dong-Heon;Ham, Youn-Kyung;Kim, Young-Boong;Jeon, Ki-Hong;Kim, Hyun-Wook;Kim, Cheon-Jei
    • 한국축산식품학회지
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    • 제36권2호
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    • pp.152-158
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    • 2016
  • This study was carried out to investigate the effects of refined, solar, and bamboo salt on the physico-chemical properties and sensory characteristics of cured pork loin. Moisture, protein, fat, and ash content, lightness, yellowness, cooking yield, and color, juiciness, and tenderness of sensory properties on curing pork loin exhibited no significant differences regardless of the nature of salts. The pH of raw and cooked cured pork loin with added bamboo salt was higher that of other salt treatments. However, the cooking loss, and Warner-Bratzler shear force of cured pork loin with added refined salt was lower than those of solar and bamboo salt pork loins cured. The flavor and overall acceptability scores of treatments with refined salt was higher than those of solar and bamboo salt treatments. The unique flavor of bamboo salt can render it as a functional material for marinating meat products. In addition, the results of this study reveal potential use of bamboo salt in meat curing.

당뇨병 마우스(db/db) 모델에서 삼채(Allium Hookeri) 부위별 추출물의 항당뇨 효능 연구 (Effects of Allium Hookeri Extracts on Glucose Metabolism in Type II Diabetic Mice)

  • 김남석;최봉겸;이선혜;장환희;김정봉;김행란;최정숙;조용식;김유석;양재헌;김영수;김현주;김대근;이창현;이성현
    • 생약학회지
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    • 제47권2호
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    • pp.158-164
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    • 2016
  • This study was conducted to verify the potential of Allium hookeri to control blood glucose metabolism in diabetes model. We fed the experimental diets(ALE, ARE) supplemented with the extract of Allium hookeri leaf or root at 1% of diet to the diabetic mice (C57BLKS/J, db/db) for 8 weeks. Hetero and control mice were fed the control diet without any extract of Allium hookeri leaf or root. At 8th week of feeding the diets, we measured body weight, blood glucose, HbA1c, and plasma insulin levels and conducted an oral glucose tolerance test (OGTT) and staining insulin immunoreactive cells in islets of pancreas. ARE group treated with the root of A. hookeri showed significantly lower blood glucose levels than the Cont group at 120 min in the OGTT. However, HbA1c level was significantly reduced in both ALE and ARE groups, and higher serum insulin levels and increased density of insulin immunoreactive cells compared with the Cont group were found in these 2 groups. Based on these results, A. hookeri is considered to be effective in improving glucose tolerance by partially affecting insulin secretion and it may be used to prevent and treat diabetic disease.

Effects of Aging Period Prior to Freezing on Meat Quality of Hanwoo Muscle (Longissimus dorsi)

  • Kim, Hyun-Wook;Lee, Eui-Soo;Choi, Yun-Sang;Choi, Ji-Hun;Han, Doo-Jeong;Kim, Hack-Youn;Song, Dong-Heon;Choi, Seul-Gi;Kim, Cheon-Jei
    • 한국축산식품학회지
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    • 제31권6호
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    • pp.799-806
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    • 2011
  • This study was conducted to evaluate the effect of the aging period prior to freezing on the meat quality of Hanwoo longissimus dorsi (LD) muscle. Three different combinations of aging and freezing periods (0/90, 20/70, and 40/50) were examined using LD muscle at 24 h postmortem under an identical storage time of 90 d. The pH and lightness slightly increased with increasing aging period. However, there were no significant (p>0.05) differences in redness and yellowness. The solitary freezing treatment (0/90) had the significantly (p<0.05) lowest moisture content. The un-aged treatment had a significantly (p<0.05) higher total loss than the aged treatments due to an increase in thaw drip loss. The aging significantly improved the myofibrillar fragmentation index and shear force of Hanwoo LD muscle (p<0.05). In addition, the aged treatments produced a higher flavor, tenderness, juiciness, and overall acceptability relative to un-aged treatment. However, there was no significant (p>0.05) difference in shear force and sensorial properties between 20 and 40 d aging prior to freezing. Therefore, 20 d aging prior to freezing may be a sufficiently effective strategy to improve the tenderness and sensorial properties of Hanwoo LD muscle.

Effects of Replacing Pork Back Fat with Brewer's Spent Grain Dietary Fiber on Quality Characteristics of Reduced-fat Chicken Sausages

  • Choi, Min-Sung;Choi, Yun-Sang;Kim, Hyun-Wook;Hwang, Ko-Eun;Song, Dong-Heon;Lee, Soo-Yeon;Kim, Cheon-Jei
    • 한국축산식품학회지
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    • 제34권2호
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    • pp.158-165
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    • 2014
  • The effects of replacing pork back fat with brewer's spent grain (BSG) pre-emulsion for physicochemical, textural properties, and sensory evaluations of reduced-fat chicken sausages are evaluated. Control was prepared with 15% pork back fat, and three reduced-fat chicken sausages were formulated with the replacement of 20, 25, and 30% pork back fat with BSG pre-emulsion. The pH level of reduced-fat sausages formulated with BSG pre-emulsion is lower than that of the control (p<0.05). The redness, yellowness, and apparent viscosity of reduced-fat chicken sausages increase proportionally with increasing BSG pre-emulsion (p<0.05). With increasing BSG pre-emulsion concentration, the fat contents and energy values are decreased in reduced-fat chicken sausages (p<0.05). The BSG pre-emulsion improves the hardness, gumminess, and chewiness of reduced-fat chicken sausages (p<0.05), and the reduction in fat and the addition of BSG pre-emulsion had no influence on the cohesiveness of the chicken sausage. And there is no significant difference in the overall acceptability among control, T1 (chicken sausage with 20% of BSG pre-emulsion, 10% of fat addition), and T2 (chicken sausage with 25% of BSG pre-emulsion, 5% of fat addition) (p>0.05). Therefore, our results indicate that BSG is effective dietary fiber source for manufacturing of reduced-fat meat product and suggest that 20-25% of BSG pre-emulsion is suitable for pork back fat in chicken sausages.