• 한국대기환경학회지
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• 제22권2호
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• pp.191-199
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• 2006

Animal feedstuff handling is one of the major fugitive dust sources in the port of Incheon. For the effective control of fugitive dusts emitting from the port of Incheon, dust control facilities with bag filter systems should be designed properly considering the characteristic of the fugitive dusts including those from animal feedstuffs. The ultimate goal of this study is thus to develop the optimum fugitive dust control system which will be applicable for the renovation of the port. As the first step to achieve this longstanding goal, filtration characteristics of soybean shell, the largest dust sources in the port, were investigated with the specially designed filter testing apparatus for this study. The variables tested for the experiments included filter materials, dust concentrations, relative humidities, and filtration velocities. Also, the filtration characteristics of the other animal feedstuffs such as sunflower seed shell, tapioca, and palm shell were investigated to determine $K_2$ as a function of filtration velocity. The information on $K_2$ will be used to design the optimum bag filter systems for animal feedstuffs handling in the port.

• BMB Reports
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• 제38권3호
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• pp.360-365
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• 2005

Membrane inositol glycerophospholipid (IGP) is metabolized to phosphatidylinositol-4-phosphate (PIP), phosphatidylinositol-4, 5-bisphosphate ($PIP_2$), and inositol triphosphate ($IP_3$) in signaling transduction. This study was carried out to determine the subclasses of IGP involved in signaling pathway. The acyl chain moieties of the phospholipids are easily modulated by dietary fatty acids. We analyzed acyl chain composition of IGP 3-subclasses, PIP and $PIP_2$ from rat brain after feeding sunflower seed oil enriched with linoleic acid or fish oil high in eicosapentaenoic acid and docosahexaenoic acid. Long chain polyunsaturated fatty acids (LCPUFA) as eicosapentaenoic acid and docosahexaenoic acid were not incorporated into ether-linked IGP (alkenylacylglycerophosphoinositol and alkylacyl-glycerophosphoinositol), PIP and $PIP_2$, while diacyl-glycerophosphoinositol (GPI) contained high LCPUFA. These results suggest that PIP might be phosphorylated from only the ether-linked IGP (alkenylacyl- and alkylacyl species) but not from diacyl subclass for signals to intracellular responses in the plasma membrane of rat brain.

• Carbon letters
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• 제9권3호
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• pp.188-194
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• 2008

Porous carbon materials synthesized from various plant derived precursors i.e. seeds of [Castor (Ricinus communis), Soap nut (Sapindus sp.), Cashew-nut (Semecarpus anacardium), Jack fruit (Artocarpus heterophyllus), Safflower (Carthamus tinctorius), Ambadi (Crotolaria juncea), Neem (Azadirachta indica), Bitter Almond (Prunus amygdalus), Sesamum (Sisamum indicum), Date-palm (Phoenix dactylifera),Canola (Brassica napus), Sunflower (Helianthus annulus)] and fibrous materials from [Corn stem- (Zea mays), Rice straw (Oryza sativa), Bamboo (Bombax bambusa) and Coconut fibers (Cocos nucifera)] were screened to make supercapacitor in 5M KOH solution. Carbon material obtained from Jack fruit seeds (92.0 F/g), Rice straw (83.0 F/g), Soap nut seeds (54.0 F/g), Castor seeds (44.34 F/g) and Bamboo (40.0 F/g) gave high capacitance value as compared to others. The magnitude of capacitance value was found to be inversely proportional to the scan rate of measurement. It is suggested that carbon material should possess large surface area and small pore size to get better value of capacitor. Moreover, the structure of carbon materials should be such that majority of pores are in the plane parallel to the plane of electrode and surface is fluffy like cotton ball.

• 한국식품영양과학회지
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• 제31권3호
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• pp.465-468
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• 2002

Affinity chromatography법에 의해 해바라기씨 유래 $\alpha$-galactosidase정제를 수행하여 locust bean gum 증점 대체자원의 개발을 위한 기초연구로서 정제효소처리된 guar gum 과 locust bean gum의 구성당인 galactose와 mannose의 구성비율을 비교 검토하였다. 정제효소처리된 guar gum의 중점효과는 galactose와 mannose비율이 1 : 3.2일 때 가장 증가하였다. 이와같은 비율은 효소적 처리시간을 24시간으로 하였을 때 나타내었다. 해바라기씨 유래 $\alpha$-galactosidase처리에 의한 guar gum으로부터의 galactose의 유리가 증점효과에 영향을 미치는 것으로 사료된다. Xanthan gum과 guar gum의 혼합, xanthan gum과 guar gum 및 정제효소처리된 천연 유래 copra meal과의 혼합물에 대한 증점효과도 비교하였다.

• 한국응용곤충학회지
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• 제47권3호
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• pp.249-254
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• 2008

점박이응애의 친환경적인 방제방법을 개발하기위해 식용유와 계란 노른자를 재료로 한 난황유(COY)를 이용하여 점박이응애 성충에 대한 살비효과를 실험실과 유리온실에서 검정하였다. 해바라기유, 콩기름, 카놀라유, 올리브유를 재료로 한 난황유를 사용하여 살비력을 비교 검정하였으나 식용유의 종류에 따른 살비효과에서는 차이가 나지 않았다. 난황유를 점박이응애에 살포하였을 때 식용유의 농도가 0.1%에서 1%까지 증가할수록 살비율은 17.6%에서 94.1%로 높아졌으며 난황유의 처리 방법도 처리량이 많을 경우 살비력이 더 높았다. 점박이응애의 알을 난황유에 침지 처리했을 경우 살란율은 95%였다. 점박이응애가 발생한 장미재배 온실에 0.3%의 해바라기유로 제조한 난황유를 3회 살포 후 69.0%에서 93.9%의 높은 방제효과를 확인하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제29권2호
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• pp.241-249
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• 2016

The supplementation of livestock feed with animal protein is a present cause for public concern, and plant protein shortages have become increasingly prominent in China. This conflict may be resolved by fully utilizing currently available sources of plant protein. We estimated the rumen degradability and the small intestinal digestibility of the amino acids (AA) in rapeseed meal (RSM), soybean meal (SBM), sunflower seed meal (SFM) and sesame meal (SSM) using the mobile nylon bag method to determine the absorbable AA content of these protein supplements as a guide towards dietary formulations for the dairy industry. Overall, this study aimed to utilize protein supplements effectively to guide dietary formulations to increase milk yield and save plant protein resources. To this end, we studied four cows with a permanent rumen fistula and duodenal T-shape fistula in a $4{\times}4$ Latin square experimental design. The results showed that the total small intestine absorbable amino acids and small intestine absorbable essential amino acids were higher in the SBM (26.34% and 13.11% dry matter [DM], respectively) than in the SFM (13.97% and 6.89% DM, respectively). The small intestine absorbable Lys contents of the SFM, SSM, RSM and SBM were 0.86%, 0.88%, 1.43%, and 2.12% (DM basis), respectively, and the absorbable Met contents of these meals were 0.28%, 1.03%, 0.52%, and 0.47% (DM basis), respectively. Among the examined food sources, the milk protein score of the SBM (0.181) was highest followed by those of the RSM (0.136), SSM (0.108) and SFM (0.106). The absorbable amino acid contents of the protein supplements accurately reflected protein availability, which is an important indicator of the balance of feed formulation. Therefore, a database detailing the absorbable AA should be established.

• Nutrition Research and Practice
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• 제7권2호
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• pp.82-88
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• 2013

Eleven types of nuts and seeds were analyzed to determine their energy (326-733 mg), moisture (1.6-18.3 mg), carbohydrate (8.8-70.9 mg), protein (4.9-30.5 mg), lipid (2.5-69.8 mg), and ash (1.2-5.5 mg) contents per 100 g of sample. Energy content was highest in pine nuts (733 mg/100 g), carbohydrate level was highest in dried figs (70.9 mg/100 g) and protein was highest in peanuts (30.5 mg/100 g). The amino acid compositions of nuts and seeds were characterized by the dominance of hydrophobic (range = 1,348.6-10,284.6 mg), hydrophilic (range = 341.1-3,244.3 mg), acidic (range = 956.1-8,426.5 mg), and basic (range = 408.6-4,738.5 mg) amino acids. Monounsaturated fatty acids (MUFA) were highest in macadamia nuts (81.3%), whereas polyunsaturated fatty acids (PUFA) were highest in the walnuts (76.7%). Macadamia nuts did not contain any vitamin E, whereas sunflower seeds contained the highest level (60.3 mg/kg). Iron (Fe) content was highest in pumpkin seeds ($95.85{\pm}33.01$ ppm), zinc (Zn) content was highest in pistachios ($67.24{\pm}30.25$ ppm), copper (Cu) content was greatest in walnuts ($25.45{\pm}21.51$ ppm), and lead (Pb) content was greatest in wheat nuts ($25.49{\pm}4.64$ ppm), significantly (P < 0.05). In conclusion, current commercial nuts and seeds have no safety concerns, although further analysis of Pb contents is necessary to ensure safety.

• KSBB Journal
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• 제11권4호
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• pp.398-404
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• 1996

전세포 효소 고정화 캡슐을 제조하기 위하여 Eschericia coli를 calcium alginate 캡슐내부에 접종하고 배양하였다. E. coli의 캡슐내부 건조중량이 1OOg/L에 달하였다. 생산배지에서 배양하는 동안 캡슐내부에 축적되는 미생물의 양이 많을수록 캡슐 내부에 축적되는 $\beta$galactosidase의 활성도 높았다. 생산배지에 금속이온 $Zn^{+2}를 2{\times}10^{-4} M $ 첨가함으로써 캡슐내부에 축척되는 ${\beta}$-galactosidase의 활성 을 25% 증가시킬 수 있었다. 캡슐제조시 해바라기유를 부피비로 2% 첨가함으로써 캡슐내부에 축적되 는 ${\beta}$-galactosidase의 활성을 10% 증가시킬 수 었었다. 부피산소전달계수, $k_La가 2.55h^- $ 안 플라스크 대신 $k_La가 82h^- $인 concentric air lift reactor 내에서 고정화 E. coli를 배양호농로써 캡슐내부의 전세포${\beta}$-galactosidase의 활성을 86% 증가시킬 수 있었다.

• Asian-Australasian Journal of Animal Sciences
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• 제16권3호
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• pp.359-367
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• 2003

Supplementary feeding strategies were evaluated from pre-calving throughout lactation on 24 dual-purpose Mpwapwa breed cows in their second or greater lactation, weighing 246-455 kg. The Mpwapwa breed is an established breed of 4 Bos indicus breeds and 8% of Bos taurus. The cows were penned and stall-fed individually. Eight weeks before calving to eight weeks after calving, the cows were divided into two groups and offered hay ad libitum with either 2 kg DM (L) or 4 kg DM/day (H) concentrates. Nine weeks after calving half of the cows on L-level continued with 2 kg DM/day (L-L) while the remainder received 4 kg DM concentrate daily (L-H). Half of the cows on H-group continued with 4 kg DM/day (H-H) while the remainder received 2 kg DM/day (H-L). The concentrate mixture comprised of sunflower seed cake (33%) and maize bran (67%). The cows consumed all the concentrate offered. Hay DM intake was similar (6.8 kg/day) and tended to decrease the last two weeks before calving increased again after calving. Live weight change and body condition score were similar across treatments before calving but differed after calving (p<0.05). Heavier cows with higher condition score pre-calving had a higher body weight loss and regained weight later. After treatment reallocation, live weight change and condition differed between treatments (p<0.05). Calves were allowed to suckle milk from one quarter. The amount of milk suckled and calf weight gains were not significantly different between treatments. The cows were removed from the experiment when the milk yield was below 4 kg per day. Cows on treatment H produced 6.2 kg and on treatment L 5.0 kg saleable milk/day (p<0.05) during the first 8 weeks post partum. During the period 9-18 weeks post partum the saleable daily milk on H-H, L-H, H-L and L-L were 5.2, 4.8, 4.7 and 4.3 kg, respectively (p>0.05).

• 한국수산과학회지
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• 제38권5호
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• pp.304-308
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• 2005

The effects of diethylhexyl phthalate (DEHP) on various oxidative stress responses in liver, kidney and gill tissues of freshwater bagrid catfish Pseudobagrus fulvidraco were investigated under laboratory conditions. Bagrid catfish were intraperitoneally injected with sunflower seed oil containing nominal concentrations of 0, 300 or 900mg DEHP per kilogram of body weight for 3 days and the effects after last injection were assessed in liver, kidney and gill tissues of the exposed organisms. The oxidative stress responses of fish were evaluated by analyzing the level of glutathione (GSH), as well as the activities of antioxidant enzymes such as glutathione S-transferase (GST), glutathione peroxidase (GPx) and glutathione reductase (GR). After exposure to the DEHP, there were significant decrease in GR, GPx activity and GSH content in liver of fish exposed to 900 mg DEHP per kilogram of body weight compared to the control group. Compared with the control group, significant decreases in renal GPx and GR activity were observed in the DEHP treatment groups (900 mg $kg^{-1}$ bw). However, no significant difference was observed in any oxidative stress responses in gills between the DEHP-treated and the untreated group of fish. The findings of the present investigation show that DEHP induce oxidative stress and the liver was the most affected organ followed by the kidney and gills. Furthermore, the changes of GPx and GR activities may be important indicators of oxidative stress responses but additional study is required to confirm the oxidative stress of DEHP.