• Title/Summary/Keyword: Central water

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Present Scenario and Future Prospects of Phytase in Aquafeed - Review -

  • Debnath, Dipesh;Sahu, N.P.;Pal, A.K.;Baruah, Kartik;Yengkokpam, Sona;Mukherjee, S.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.12
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    • pp.1800-1812
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    • 2005
  • Aquaculture pollution is a major concern among the entrepreneurs, farmers and researchers. Excess discharge of phosphorus and nitrogen into the water bodies is the principal pollutant responsible for this. Plant-based feed ingredients due to its high phytic acid content enhances both nitrogen and phosphorus discharge thereby increasing the pollution level. Dietary phytase treatment is probably the best answer to address this problem. This review explains the nature and properties of phytate, its interactions with other nutrients and the application of phytase in aquafeed to reduce the pollution. This review also covers the different biotechnological aspects for lowering the phytic acid level in the common aquafeed ingredients, as an alternate approach to controlling the pollution level. Some of future research needs have also been highlighted to attract the attention of more researchers to this area.

Development of a Polyvoltine Breed - $BL_{67}$ (Pg) of the Silkworm, Bombyx mori L. with Parthenogenetic Origin

  • Singh, Ravindra;Rao, D.Raghavendra;Gangopadhyay, Debnirmalya;Choudhary, Nazia;Kariappa, B.K.;Dandin, S.B.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.9 no.1
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    • pp.41-46
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    • 2004
  • A breeding programme was initiated by utilizing a robust bivoltine breed CSR$_{18}$ and a polyvoltine breed Cambodge with the main objective of developing robust polyvoltine silkworm breeds/hybrids. At F$_1$ and F$_2$, parthenogenetic development was induced following warm water treatment of eggs at 46$^{\circ}C$ for 18 min followed by two backcrosses with Bl$_{67}$, an evolved polyvoltine breed. The newly developed breed was subjected for hybrid study using eight hybrid combinations in the laboratory at F$_{8}$ generation. F$_1$ hybrids between newly developed breed Bl$_{67}$ (Pg) and promising bivoltine breeds exhibited their superiority by expressing significant hybrid vigour for several economic characters like cocoon yield/10,000 larvae, cocoon weight, cocoon shell weight, cocoon shell ratio and denier. Study on cocoon shape variability revealed that cocoons of all the F$_1$ hybrids except BL$_{67}$ (Pg)${\times}$NB$_4$D$_2$ were found comparatively uniform in shape.pe.

Development of the Seed Filter for the enhancement of cigarette filter biodegradability (필터 생분해성 증진을 위한 종자 필터 개발 및 적용 효과)

  • Kim, Soo-Ho;Kim, Min-Kyu;Hwang, Eui-Il;Han, Young-Rim;Lee, Chang-Kuk;Yeo, Woon-Hyung
    • Journal of the Korean Society of Tobacco Science
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    • v.36 no.1
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    • pp.1-11
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    • 2014
  • Cigarette filters containing Brassica Rapa L. seeds of the dark brown and round shaped were evaluated to determine the effect of seed addition on filter degradability. The seeds with germination capability under the tar/nicotine condition in the preliminary test, were put into the active carbon part of the filter(12mm) during filter rod making by the kit. The $4{\pm}2$ pieces of the seeds were put into the opened fiber bundle of the filter tow. In order to test the germination rate of the seeds, seed filters were placed either in a petri dish or test-pot in a conditioned area ($25^{\circ}C$, 70 % RH). The seed filters were placed outdoors exposed to natural conditions with the periodic water supply. The seeds in the smoked filters showed 90 % germination rate after a month under the open air condition. No significant differences in the sensory evaluation and analysis were obtained when the control sample was compared to the same cigarettes with the seeds.

Physicochemical and textural properties of germinated brown rice according to rice varieties

  • Oh, Sea-Kwan;Cho, Dong-Hwa;Park, Hye-Young;Lee, Seuk-Ki;Choi, Hye-Sun;Park, Jiyoung
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.269-269
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    • 2017
  • Germination is one of the techniques used to enhance the texture properties and nutritional value of the brown rice (BR). Therefore, germinated BR (GBR) has received significant attention during the last decade. Physicochemical and cooking properties of brown rice were examined before and after germination. Germination raised the cooking properties, such as water absorption, expanded volume and soluble solid of cooked BR (brown rice). The texture, measured using tensipresser, was significantly improved by germination. The hardness of cooked BR was decreased by germination, but the GBR was sticker. In RVA, all viscosity value (peak viscosity, break down, set back, and final viscosity) of germinated rice flour was also reduced while gelatinization temperature did not change. Amylose content and amylopectin chain length distribution of BR starch were slightly changed by germination. Overall results revealed that germination was an effective tool to improve texture and cooking properties of BR.

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Effect of sulfate activators on mechanical property of high replacement low-calcium ultrafine fly ash blended cement paste

  • Liu, Baoju;Tan, Jinxia;Shi, Jinyan;Liang, Hui;Jiang, Junyi;Yang, Yuanxia
    • Advances in concrete construction
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    • v.11 no.3
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    • pp.183-192
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    • 2021
  • Due to economic and environmental benefits, increasing the substitution ratio of ordinary cement by industry by-products like fly ash (FA) is one of the best approaches to reduce the impact of the concrete industry on the environment. However, as the substitution rate of FA increases, it will have an adverse impact on the performance of cement-based materials, so the actual substitution rate of FA is limited to around 10-30%. Therefore, in order to increase the early-age strength of high replacement (30-70%) low-calcium ultrafine FA blended cement paste, sodium sulfate and calcium sulfate dihydrate were used to improve the reactivity of FA. The results show that sodium sulfate has a significant enhancement effect on the strength of the composite pastes in the early and late ages, while calcium sulfate dihydrate has only a slight effect in the late ages. The addition of sodium sulfate in the cement-FA blended system can enhance the gain rate of non-evaporation water, and can decrease the Ca(OH)2 content. In addition, when the sulfate chemical activators are added, the ettringite content increases, and the surface of the FA is dissolved and hydrated.

A Study on Efficient Integrated Kitchen Management of Restaurant (외식업체 통합주방의 효율적인 운영관리에 관한 연구 -통합주방의 중앙공급에 따른 효율화 사례중심으로-)

  • 박종훈;조용범
    • Culinary science and hospitality research
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    • v.9 no.4
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    • pp.54-68
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    • 2003
  • This study aims at efficiency of kitchen management by adoption of a systematic central kitchen and conversion of conventional kitchen to convenience kitchen at ' H ' restaurant. First, integrated menu control of banquet buffet functions became more competitive with quality menu and eventually brought about guests satisfaction. Second, systematic central kitchen made possible standardization and mass production through simplified production line. Efficiency through quick service and shortened preparation time was realized, and food materials were recycled effectively at the same time. Integrated ordering lowered purchasing price and built an efficient cost control system. Third, conversion of conventional kitchen to convenience kitchen and strengthened central kitchen system facilitated agreeable work conditions and optimal work flow with butcher's and even sauce making utensils. Fourth, integrated supply system of buffet menu and sauce from western restaurants saved about 520 million won of labor costs. Last, one integrated kitchen out of two was easier in sanitation control with pleasant restaurant space. Sharing kitchen facilities and equipments also saved about 30% of maintenance fee. Power, water, and gas were also saved and eventually curtailed overall expenses.

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Effects of Bistortae Rhizoma on Hemostasia, Anti-inflammatory Action and Central Nervous System (권삼(拳蔘)이 지혈(止血).소염작용(消炎作用) 및 중추신경계(中樞神經系)에 미치는 영향(影響))

  • Sun, Jung-Ki;Lee, Dong-Joon
    • The Journal of Internal Korean Medicine
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    • v.21 no.5
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    • pp.781-789
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    • 2000
  • Objective : The purpose of these research was to investigate effects of water extract of Bistortae Rhizoma(BRE) on the hemostasia, anti-inflammatory action and central nervous system. Methods : we used mice and rats administered with the extract of the above herbs. Results : BRE decreased the permeability of evans blue into peritoneal cavity and cotton pellet granuloma formation. BRE did not decrease the acetic acid induced writhing syndrome and the histamine induced mouse paw edema. BRE inhibited the pentylenetetrazole and the strychnine induced convulsion. BRE shortened the bleeding time and plasma prtrombin time. BRE did not affect on the proliferation of Balb/c 3T3 cells. Conclusions : these results suggest that the effects of BRE are the hemostasia, anti-inflammatory action, and mild depressant activity of central nervous system.

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Replacement of Hexachlorocyclohexane to Environmentally Friendly Biosurfactant as Precursor for the Production of Biosurfactant from Pseudomonas

  • Anu Appaiah, K.A.;Parvathy, A.;Mathew, Mariam;Karanth, N.G.K.
    • Journal of Microbiology and Biotechnology
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    • v.21 no.8
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    • pp.858-860
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    • 2011
  • Production of biosurfactant can be substantially increased by the addition of precursors like vegetable oils, petroleum products, and other water-insoluble substances. Pseudomonas Ptm+ strain produces biosurfactant in the presence of hexachlorocyclohexane (HCH), which specifically emulsifies HCH, a recalcitrant organochlorine pesticide. Addition of previously produced crude biosurfactant by the same organism as a precursor instead of HCH increased production of biosurfactants with a decrease in the total fermentation time from 32 to 24 h. The main objective of this paper was to find alternatives for HCH as an inducer.