• 한국토양동물학회지
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• 제8권1_2호
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• pp.13-16
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• 2003

다양한 종류의 생 음식물쓰레기를 세척 및 퇴비화 과정없이 배출된 상태로 수거하여 죽처럼 갈아서 지렁이에게 먹이로 주었을 때에 생 유기물을 바로 먹을 수 있는지를 실험하였다. pH와 EC가 다른 15개 종류의 음식물쓰레기에 대해서 먹이 급이량을 1.5kg/m$^2$와 3.0kg/m$^2$을 주고 지렁이의 하루 처리량을 조사하였다. 15$^{\circ}C$ 항온실에서는 평균 0.87kg/m$^2$/day를 처리하였으며 2$0^{\circ}C$에서는 1.01kg/m$^2$/day로 15$^{\circ}C$ 항온실보다 많은 양을 처리하였다. 또한 pH와 EC가 다른 15개 종류의 음식물쓰레기에 대해서 먹이 급이량을 3kg/m$^2$으로 고정하고 처리속도를 조사하였다. 15$^{\circ}C$ 항온실에서 3kg의 생 음식물쓰레기를 처리하는데 평균 4.0일이 소요됐고, 2$0^{\circ}C$ 항온실에서는 3.3일이 걸렸다. 결론적으로 pH, EC 그리고 온도에 관계없이 생 음식물쓰레기도 먹을 수 있는 것으로 조사되었으며 pH은 높을수록, EC는 낮을수록 지렁이가 잘 먹었으며 온도는 2$0^{\circ}C$에서 좋은 영향을 미친 것으로 나타났다.

• 한국잠사곤충학회지
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• 제36권2호
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• pp.152-156
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• 1994

생사에 G.A.(glutaraldehyde)와 formalin을 혼합처리하는 방법으로 세리신정착을 실시한 다음 세리신 정착효과, 정착에 따른 백도의 변화, 물성 변화 등을 검토한 결과를 요약하면 다음과 같다. 1. G.A. 농도에 관계 없이 formalin 1% 용액 이상으로 정착하면 미정착사의 96%까지 백도가 향상된다. 2. Formalin G.A의 혼합처리에 의해 정련에 의한 백도 감소를 방지할 수 있었다. 3. Formalin 0.5% 용액 혼합처리로 완전한 세리신 정착을 얻을 수 있었다. 4. 세리신정착처리는 미정착사에 비해 강·신도의 증가를 가져왔다. 5. 정착사와 미정착사의 표면구조는 큰 차이가 없었다.

• 한국응용과학기술학회지
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• 제32권4호
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• pp.702-711
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• 2015

천마를 다양한 용매(물, 에탄올 및 70%) 및 다양한 농도 (0.725, 1.25, 2.5 및 5 mg/mL)로 추출하고 추출된 물질을 젖산균과 유용미생물(Effective Microorganisms)로 발효시킨 다음, 이들 물질들이 화장품 소재로 활용 가능한가를 확인하였다. 물, 에탄올 및 70% 에탄올로 추출한 물질들을 각각 0.725, 1.25, 2.5 및 5 mg/mL 농도에서 실험한 결과, flavonoid, polyphenol 및 DPPH free radical scavenger 등과 같은 항산화물질은 에탄올 추출물에 가장 많이 함유되어 있었고, DPPH radical 소거능은 유용미생물로 발효시킨 천마를 에탄올로 추출한 경우 1.25 mg/mL에서 $27.08{\pm}0.5%$이었으나 2.5 mg/mL에서는 $27.08{\pm}0.5%$로 증가하였다. 미백 활성을 측정할 수 있는 tyrosinase 활성 저해 실험에서는 EtOH 추출물을 젖산균으로 발효시켰을 때 가장 저해 효과가 우수하였고(0.725 mg/mL에서 $39.1{\pm}0.4%$, 2.5 mg/mL에서 $62.8{\pm}1.5%$), RAW 264.7 Cells을 이용한 세포 생존율 실험 결과 물, EtOH, 70% EtOH 추출물과 이들의 발효 물질 모두 85%이상의 세포 생존율을 나타내 세포의 염증에 대한 안정성을 확인하였다. ROS 생성으로 인한 항산화 실험에서는 양성 대조군으로 RAW 264.7 cells을 lipopolysaccharide로 자극시켜 활성화된 세포에 비발효와 발효에 따른 추출물을 농도별로 처리하였을 때 유효미생물로 발효시켰을 경우가 가장 항산화성이 높은 것으로 확인하였다. 이상과 같은 연구결과 천마 추출 및 발효 물질은 화장품용 항산화제, tyrosinase 활성 저해제 및 항염증제로 사용될 수 있음을 알았다.

• Journal of Dairy Science and Biotechnology
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• 제23권2호
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• pp.93-98
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• 2005

본 연구는 항원성을 저감한 우유 및 유제품 개발을 위한 기초자료 도출을 위해 열처리와 감마선 조사 처리 시 우유의 화학적, 미생물학적 및 면역적 변화를 비교하였다. 열처리와 감마선 조사 처리 시 열처리 온도와 조사량이 높을수록 유리지방산 함량이 증가하는 경향을 나타내었으며 UHT 처리시와 5 kGy 조사시 유리지방산 함량은 유사하였다. $10^3$ CFU/mL 수준의 원유를 저온, 고온, 초고온으로 열처리시와 1${sim}$10 kGy로 감마선 조사처리 시 모두 일반세균과 대장균 군이 검출되지 않았으나, 일주일 지난 후에도 UHT 처리유와 5kGy 이상 조사 처리유에서 일반세균과 대장균 군이 검출되지 않았다. 원유를 열처리시 arginine, asparate, iso-leucine, leucine, lysine, methionine이 감소된 반면 조사처리에 의해 aspartate, histidine, iso-leucine, leucine, lysine이 감소되어 열처리와 조사처리가 단백질의 일차구조에도 영향을 미칠 수 있는 것(p<0.05)으로 나타났다. 또한, 우유의 항원성은 감마선 조사처리시 5kGy 이상에서 유의적(p<0.05)으로 감소하였다. 이상의 결과로 볼 때 5 kGy 정도의 감마선 조사처리로 UHT 처리시와 유사한 화학적, 미생물학적 효과와 우유의 항원성 감소효과를 기대할 수 있다.

• 한국약용작물학회지
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• 제14권4호
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• pp.229-233
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• 2006

고려인삼과 미국삼에 있어 원료수삼의 품질 외적요인과 홍삼품질과의 관계를 조사하여 종간특성을 비교하였다. 원료수삼의 편급과 등급을 결정하는 품질요인은 체형계수, 동장 그리고 근중을 적용하였으며 이들 요인과 홍삼 품질관계를 구명하였다. 1. 편급의 분포는 고려인삼의 경우 중편과 대편급이 많았으나 미국삼은 중편과 소편급이 많았으며 미국삼은 고려인삼에 비해 동장이 짧고 동직경이 굵고 부정형 지근이 많았다. 2. 원료삼 품질은 고려인삼이 미국삼에 비하여 양호하였고 홍삼품질은 고려인삼이 지삼 이상의 고급홍삼이 많았으나 미국삼은 양삼과 같이 저급홍삼이 많았다. 3. 원료수삼 품질요인중 중편삼과 대편삼의 경우 고려인삼은 체형계수 0.5 이하였으나 미국삼은 0.5를 상회하여 미국삼은 홍삼품질에 적합하지 않았다. 4. 고려인삼과 미국삼 모두 품질요인으로 동장과 근중은 홍삼품질과의 관계에서 비슷한 경향이나 체형계수가 특히 홍삼의 품질을 좌우하는 요인이었다. 5. 따라서 고려인삼과 미국삼 모두 원료삼과 홍삼품질 향상을 위해 근중, 체형계수 그리고 동장의 조정이 요망되었다.

• 대한수의학회지
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• 제39권3호
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• pp.609-615
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• 1999

From July of 1997 to June of 1998, total 279 raw milk samples over withdrawal period after mastitis treatment from dairy farms located in the provinces of Kyonggi and Choongchung were collected to test drug residues. Each sample was tested by TTC- II test and Delvotest SP. Among the total 152 raw milk samples of cow treated by ${\beta}$-lactams, 32 samples(21.2%) were positive on the Delvotest and 15 samples(9.9%) showed positive on the TTC-II test. Also, from the total 37 samples treated by sulfonamides, 5 samples(13.5%) were positive on the Delvotest and 3 samples(8.1%) showed positive on the TTC-II test. For the total 55 raw milk samples of cow treated by tetracyclines, 9 samples(16.4%) were positive on the Delvotest and 5 samples(9.1%) showed positive on the TTC-II test. In addition, from the total 35 samples treated by aminoglycosides, 7 samples(20.0%) were positive on the Delvotest and 5 samples(14.3%) showed positive on the TTC-II test. Our study shows that it is possible that drugs are to be detected by the drug residues test of an individual raw milk even over the withdrawal period after mastitis treatment and the raw milk of bulk tank.

• 한국식품조리과학회지
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• 제31권1호
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• pp.62-71
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• 2015

The purpose of this study was to evaluate the changes on the characteristics of the oxidative stability of Tenebrio molitor larvae during cold storage at $4^{\circ}C$. Pretreatment for T. molitor larvae was designed into three methods: raw (R), freeze-dried (F.D.), and pan-fried (P.F.). The water content of the raw sample (61.46%) was higher than those of other samples (F.D.: 5.02%, P.F.: 3.67%) and its high water content was expected to facilitate the oxidation of the raw sample. In our results, the peroxide value and the carbonyl value of all of the samples increased and the raw sample, after storage for 18 day, showed the highest value. The pan-fried sample had no significant increase in its lactic acid content, acid value, and thiobarbituric acid value; whereas those values were increased in the raw sample and the freeze-dried sample (p<0.05). The browning reaction was more progressed in the pan-fried sample than other samples at 0 day, but there was no significant change during the storage. The raw sample and the freeze-dried sample had their browning indexes increase with the increasing storage period (p<0.05). The pan-fried sample produced less oxidation products than the freeze-dried sample, indicating that the unheated sample was more susceptible to oxidation than the heated samples. In conclusion, heating treatment and low water content would be effective for improving the safety and stability of T. molitor larvae during cold storage.

• 대한가정학회지
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• 제24권3호
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• pp.79-84
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• 1986

the purpose of this paper is to study on the proximate composition, mineral and saponin content in white sesame, black sesame, and perilla seed. For this purpose, we have compared six different materials: white-raw-sesame, white-roast-sesame, black-raw-sesame, black-roast-sesame, raw-perilla seed and roast perilla seed, and have come to the following results. The crude fat content was the highest in white-raw-sesame(55.3%). In all the six samples, the crude fat content in raw seeds was all higher than that in roast seeds. The crude protein content was the highest in the roast perilla seed(24.6%), and in the six samples, the crude protein content in roast seeds all higher than that in roast seeds. The total sugar content was found to be the highest in the roast perilla seed(8.29%). The reducing sugar content was higher in raw perilla seed(1.57%) than in other sample materials. The ash content was the highest in black raw-sesame(5.93%), and that percentage rates was the same as that of FAO and of Japan. Minerals like Cd. Mn. Cu. Na. Mg. Pb. and Ca. were found to be contained more in black sesame than in other sample materials. The minerals contained most in white sesame were Zn.(61.6ppm) and Fe(49.4ppm), and K was contained a little more in perilla seed than in the others. The sample materials which contain saponin most were white-roast-sesame(0.34%) and black-roast-sesame(029%).

• Parasites, Hosts and Diseases
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• 제46권3호
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• pp.139-143
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• 2008

Ingestion of raw animal liver has been suggested as a possible mode of infection of human toxocariasis, We evaluated the relationship between toxocariasis and the ingestion of raw meat in patients with eosinophilia of unknown etiology. The study population consisted of 120 patients presenting with peripheral blood eosinophilia (> $500\;cells/{\mu}l$ or > 10% of the white blood cell count). They were divided into 2 groups: 104 seropositive patients based on a Toxocara excretory-secretory IgG ELISA and 16 seronegative patients. While 25.0% of seronegative patients had a recent history of eating raw cow liver, 87.5% of seropositive patients had this history. Multivariate statistical analysis showed that a recent history of eating raw cow liver was related to an increased risk of toxocariasis. Collectively, it is proposed that raw cow liver is a significant infection source of toxocariasis in the patients with eosinophilia of unknown etiology.

• 농촌의학ㆍ지역보건
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• 제22권2호
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• pp.239-252
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• 1997

A questionnaire survey including stool examination for the parasite ova, skin test, and enzyme-linked immunosorbent assay (ELISA) of the liver fluke to find the factors related with the prevalence of the parasite infestation was done toward 118 residents living in three villages of Song-jung, Yi-jung, and Chim-gok of Okok-myun, Goksung County, South Cholla Province. The results are as follows : 1. The prevalence of Clonorchis sinensis ova by the stool examination was 46.6%. The sensitivity and specificity of skin test to egg-positive cases were 63.5% and 68.9%. The sensitivity and specificity of ELISA to egg-positive clonorchiasis were 100% and 34.9%. 2. The prevalence of Clonchiasis was higher in male than in female. 45~64 year old group was the highest among age groups, and the longer the duration of living in the present residence was, the higher the prevalence was shown statistically significantly (p<0.01). 3. The present drinker had higher prevalence of Clonorchiasis significantly than the past drinker or non-drinker, and the more the frequency of drinking the higher the prevalence was shown significantly (p<0.05). 4. Those who took raw fish had significantly higher than persons who didn't take it or take cooked fish(p<0.05) and prevalence showed the tendency to be increased as the frequency to take raw fishes increased significantly(p<0.05). 5. Those who had taken a raw sweet fish(Plecoglossus altivelis) or snake-headed fish(Ophicephalus argus) showed significantly higher prevalence of infection with liver fluke than persons who didn't take the raw fish. 6. While 56.4% of persons infected with Clonorchiasis answered that they were healthy, only 13.0% of the subjects were careful for their health, and 41.8% experienced tests to diagnose liver flukes before they were examined by this survey. 7. While 56.4% of infected persons thought the prevalence was high in their community, 54.0% were afraid to be infected, 47.1% thought the infection might destroy their health, 25.5% took treatment drugs, and 18.2% took raw fish continuously after treatment. The above results confirmed that Goksung area was highly prevalent in Clonorchiasis, so it was necessary to push effective preventive program against liver fluke infection together with the program to diagnose and treat existing infected persons.