• Title/Summary/Keyword: 농업부존자원

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Manufacturing of Korean Paper(Hanji) with Indian Mallow (Abutilon avicennae Gaertner) as the Alternative Fiber Resources(I) - Productivity and Pulping Characteristics of Indian Mallow - (대용섬유자원으로써 어저귀를 이용한 한지제조(제1보) - 어저귀의 건물 생산량 및 펄프화 특성 -)

  • Jeong, Seon-Hwa;Cho, Nam-Seok;Choi, Tae-Ho
    • Journal of the Korean Wood Science and Technology
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    • v.30 no.2
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    • pp.144-150
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    • 2002
  • Indian mallow is characterized by the rapid growth and high harvest of the fibrous materials. This study was carried out to investigate the sheet properties of Hanji using Indian mallow, made by different pulping methods, such as alkali and sulfomethylated pulpings and different stock compositions, various mixing ratios of bast fiber, woody core and whole stalk fibers. The results from this study were summarized as follows. The length and width of the bast fibers were 1.40-430 mm(av. 235 mm), and 9.2-26.4 ㎛(av.18.3 ㎛), respectively. The cell wall thickness was 4.0-115 ㎛(av. 7.7 ㎛). Runkel ratio, flexibility coefficient and fiber length/fiber width ratio were 1.38, 0.42 and 128 respectively. Bast fiber and whole stalk were cooked by alkali and sulfomethylated methods. Sulfomethylated pulping resulted in superior pulp in terms of yield and quality as compared with those of alkali pulping. The pulp yields of bast fiber was higher than those of whole stalk

Effect of Fermented Rubus Occidentalis Supplementation on Nutrient Transfer Factor and Antioxidant Activity in Blood of Berkshire Pig (복분자 발효사료가 버크셔 돼지의 혈액 내 영양운반인자와 항산화 활성에 미치는 영향)

  • Kim, Ji-Yeon;Choi, Do-Hyun;An, Jin-Ho;Park, Hwa-Chun;Kong, Hyun-Seok
    • Journal of agriculture & life science
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    • v.53 no.5
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    • pp.127-136
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    • 2019
  • Today, as the specification of pigs increases, it is important to develop eco-friendly livestock feeds that do not add antibiotics to highly utilizable materials as feed resources, and to produce functional eco-friendly pork and processed products. The purpose of this study was to establish Rubus occidentalis (RO) byproducts containing various amounts of physiologically active substances such as anticancer, anti - inflammation and antioxidant as a raw material for pig feed. The multifaceted efficacy of the RO fermented fodder (ROFF) was confirmed by the nutrient transport factors and antioxidant activity of Berkshire pigs. ROFF was added 0.3% to the general diet and the efficacy was confirmed by feeding diets to Berkshire pigs according to each weight for 43~73 days. As a result, the total cholesterol (TC), LDL-cholesterol (LDL-C) and HDL-cholesterol (HDL-C) levels were decreased or were increased in the castrated male and female Berkshire pigs but not significantly. It was confirmed that the tendency was improved in nutrition physiology. The biochemical levels of female finishing pigs were not significant but increased. In the case of finishing pigs with possibility of pregnancy, it is expected that the nutrition supply for piglet production and will help in the production of the healthy piglet. Transferrin (TFE) levels tended to increase in female growing pig and 110-150 kg finishing pigs. Thus ROFF could minimize the negative effects of iron contents deficiency in female Berkshire pigs. Glutathione peroxidase 1 (GPx1) activity was increased in castrated male and female 110-150 kg finishing pigs. Therefore, ROFF tends to improve the antioxidant capacity. The results of this study suggest that ROFF is one of the most favorable dietary sources when considering the contents of RO in feed. In particular, ROFF could have a positive effect on nutrient transport and iron content of female rather than castrated male Berkshire pigs.