• Title/Summary/Keyword: Plant food

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Estimation of Characteristics Treatment for Food Waste using Ultra Thermophilic Aerobic Composting Process (초고온 호기성 퇴비화 공정을 이용한 음식물쓰레기 처리 특성 평가)

  • Park, Seyong;Oh, Dooyoung;Cheong, Cheoljin;Jang, Eunsuk;Song, Hyoungwoon
    • Journal of Korea Society of Waste Management
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    • v.34 no.2
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    • pp.140-147
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    • 2017
  • This study was conducted to evaluate the effects of physical characteristics. Twelve specific odorous compounds and various sources of bacteria were tested via treatment of food waste using an ultra-thermophilic aerobic composting process. Food waste was mixed with seed material and operated for 47 days. During composting, the temperature was maintained at $80-90^{\circ}C$. The variations in $O_2$, $CO_2$ and $NH_3$ production suggested typical microorganism-driven organic decomposition patterns. After composting, the concentrations of 12 specific odorous compounds other than ammonia did not exceed the allowable exhaust limits for odor. After composting, thermophiles represented 50% of all bacteria. After composting, the percentage of thermophile bacterial increased by 15%. Therefore, both stable composting operation and economic benefit can be expected when an ultra-thermophilic composting process is applied to food waste.

Respection of Pectic Enzymes Among the Hydrolysis Enzymes of Plant Cell Wall (식물세포벽 가수분해효소 중 펙틴계효소에 대한 고찰)

  • 최동원;김인규
    • The Korean Journal of Food And Nutrition
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    • v.9 no.1
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    • pp.92-98
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    • 1996
  • Pectic materials, which are widely spread in the plant cell wall as plant carbohydrates, plays a great role in food Industry that acts as a softening agent of fruits and vegetables, and gel forming agents. To study physiochemical properties and industrial applications of pectic enzymes that hydrolyzes pectin, classification, assay method and Industrial application are reviewed based on previous results.

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Antioxidant Characteristics and Preparation of Chocolate Added with Sochungryong-Tang (Oriental Medicinal Plants Extract) (소청룡탕 한약 농축분말을 첨가한 초콜릿의 제조 및 산화방지 특성)

  • Yoo, Kyung-Mi;Lee, Ki-Won;Moon, Bo-Kyung;Hwang, In-Kyeong
    • Korean journal of food and cookery science
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    • v.21 no.5
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    • pp.585-590
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    • 2005
  • The purpose of this study was to investigate the effects of oriental medicinal plant extracts added to chocolates on the moisture content, color, radical scavenging activity and sensory characteristics. The oriental medicinal plant extracts were added at a weight percentage of 0, 4 and 8%. As the ratio of the extracts in the chocolates increased, the moisture content, color, and radical scavenging activity increased. In sensory evaluation, significant differences (p<0.05) were shown in taste, bitterness, and overall acceptability depending on the addition of oriental medicinal plant extracts but there were no significant differences in chocolate aroma and texture.

Conservation of matrix protein genes in rabies viruses circulating in South Korea since 1999

  • Lee, Young-Ae;Kim, Ha-Hyun;Yang, Dong-Kun;Cho, In-Soo
    • Korean Journal of Veterinary Research
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    • v.57 no.4
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    • pp.249-252
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    • 2017
  • Rabies virus (RABV) causes a neurological disease in warm-blooded animals that is nearly always fatal. In this study, we analyzed the matrix (M) genes in 10 Korean street RABV strains isolated from two Provinces during 2011-2013. The M genes in these 10 Korean strains were highly conserved during 1999-2013. Phylogenetic analysis revealed they were closely related to the M genes of RABVs isolated in northeastern China. Specific amino acid substitutions were identified in the KRVB1206, KRVF1301, and BV9901PJ strains. However, functional domains, including those involved in virus production and pathogenicity, were conserved in all 10 strains.

Effects of plant-based Korean food extracts on lipopolysaccharide-stimulated production of inflammatory mediators in vitro

  • Lee, Sun Young;Kim, Yoo-Sun;Lim, Ji Ye;Chang, Namsoo;Kang, Myung-Hee;Oh, Se-Young;Lee, He-Jin;Kim, Hyesook;Kim, Yuri
    • Nutrition Research and Practice
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    • v.8 no.3
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    • pp.249-256
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    • 2014
  • BACKGROUND/OBJECTIVES: The traditional Korean diet is plant-based and rich in antioxidants. Previous studies have investigated the potential health benefits of individual nutrients of Korean foods. However, the cumulative effects of a Korean diet on inflammation remain poorly understood. Therefore, the aim of this study was to investigate the anti-inflammatory effects of a plant-based Korean diet. MATERIALS/METHODS: Using data from the Fifth Korean National Health and Nutrition Examination Survey, 75 individual plant food items were selected which represent over 1% of the total diet intake of the Korean diet. These items were classified into ten different food groups, and the vegetable (Veg) and fruit (Fruit) groups were studied based on their high antioxidant capacity. For comparison, a mixture of all ten groups (Mix) was prepared. To produce a model of inflammation with which to test these Veg, Fruit, and Mix plant-based Korean food extracts (PKE), RAW264.7 macrophages were treated with lipopolysaccharide (LPS). RESULTS: Levels of nitric oxide (NO) and prostaglandin $E_2$ ($PGE_2$), as well as protein expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) were found to be lower following PKE treatment. Furthermore, PKE treatment was found to suppress tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and interleukin-6 (IL-6) via the nuclear transcription factor kappa-B ($NF-{\kappa}B$) signaling pathway. Overall, the Mix group exhibited the greatest anti-inflammatory effects compared with Veg and Fruit PKE group. CONCLUSIONS: Inhibition of LPS-induced pro-inflammatory mediators by the PKE tested was found to involve an inhibition of NF-kB activation. Moreover, PKE tested have the potential to ameliorate various inflammation-related diseases by limiting the excessive production of pro-inflammatory mediators.

Ethnophytotherapies for Treatment of and Prevention against Cancer

  • Chooi, Ong-Hean
    • Plant Resources
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    • v.2 no.1
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    • pp.49-58
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    • 1999
  • This paper examines various traditional and alternative practices utilised by Malaysians for the treatment of and prevention against cancer. A list of plants used for treating cancer is given. Care for cancer patients includes food reputed to be good in promoting recovery and preventing recurrence as well as food taboos - various food to be avoided in the belief that these types of food can induce development or recurrence of cancer.

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The recognition of the leaf size determines the egg cluster size while leaf abundance is correlated to the laying frequency for Luehdorfia puziloi (Lepidoptera: Papilionidae) oviposition

  • Kim, Do Sung;Park, Doo Sang;Koh, Jae Ki
    • Journal of Ecology and Environment
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    • v.36 no.1
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    • pp.11-17
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    • 2013
  • The life cycle of butterflies is closely related to the growth of food plants and, through a prolonged coevolutionary process, has undergone an ecological adaptation. So, it is important that control the egg-laying number and place to secure enough food plant by female adult to guarantee the survival of the larvae. To study whether oviposition control of the Luehdorfia puziloi takes into greater consideration food plant leaf biomass or leaf abundance, correlation among the egg cluster size, the leaf size, and the number of leaves around egg clusters was investigated. According to the results, the egg clusters size exhibited positive correlation with the leaf size of food plants on which eggs had been laid but did not do so with the number of surrounding leaves. In addition, the number of egg clusters laid exhibited positive correlation with the number of surrounding food plant leaves but not with the leaf size on which eggs had been laid. Consequently, for the Luehdorfia puziloi, the females' recognition of the leaf size seems to be the most important factor in the egg cluster size, and the number of egg clusters had positive correlation with food plant density per unit area.

Effect of Food Waste Compost on Crop Productivity and Soil Chemical Properties under Rice and Pepper Cultivation

  • Lee, Chang Hoon;Ko, Byong-Gu;Kim, Myung-Sook;Park, Seong-Jin;Yun, Sun-Gang;Oh, Taek-Keun
    • Korean Journal of Soil Science and Fertilizer
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    • v.49 no.6
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    • pp.682-688
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    • 2016
  • Food waste has recognized one of useful sources for potentially agricultural application to supply organic matter and nutrients in arable soil. However, there was little information on application of food waste compost related to the maturity and NaCl content in arable soil. This study evaluated the effect of food waste compost application on yield and fertility in soil under flooding and upland condition. The yields in rice and pepper cultivation decreased with increasing the rate of food waste compost application in soil (p<0.05). Maximum yields of rice ($49.0g\;plant^{-1}$) and pepper ($204g\;plant^{-1}$) were shown at 10 and $30Mg\;ha^{-1}$ of food waste compost application, respectively. The N, P, and K contents in grain and plant residues increased by the application of food waste compost, there was no difference on Na/K ratio in plant tissue among the treatments. Application of food waste compost resulted in the increase of pH, EC, TC, available P contents in soil after crop harvest, especially, which was shown the increase of the CEC and exchangeable sodium percentage (ESP) contents in irrespective of water condition. In conclusion, application of food waste compost in soil was effective on the supply of the organic matter and nutrient. However, it might need caution to apply food waste compost for sustainable productivity in arable soil because of potential Na accumulation.