• Proceedings of the Korean Society for Food Science of Animal Resources Conference
• /
• 2004.05a
• /
• pp.194-197
• /
• 2004

양념갈비의 품질 안정성 및 저장성 확보를 위한 일환으로 시판되는 양념갈비에 감마선 조사(0, 2.5, 5, 7.5 kGy)하여 포장 방법(함기 vs 진공) 및 저장 기간에 따른 양념갈비의 총균수, pH, 수분활성도, 전자공여능 및 지방산패도를 측정하였다. 감마선 조사한 양념갈비의 미생물 생육은 조사선량이 증가할수록 저하되었고 포장방법별로는 함기포장구보다 진공포장구가 미생물 생장억제에 더욱 효과적임을 확인하였다. pH는 함기포장구에서 저장 7일째 다소 감소하는 경향을 보였으나 포장방법과 조사선량에 따른 유의차가 나타나지 않았다. 감마선 조사한 양념갈비의 전자공여능은 저장기간에 따라 감소하는 경향을 보였으나 그 감소폭은 함기포장구가 진공포장구보다 크게 나타났다. TBARS값은 진공포장구의 경우 감마선 조사선량과 저장기간에 따라 유의적인 차이는 없었다. 그러나 함기포장구는 조사선량이 증가할수록 그리고 저장기간에 따라 유의적으로 증가하여 저장 7일째 진공포장구보다 2배의 높은 값을 나타내었다. 따라서 시판되는 양념갈비의 저장 중 유통 안전성을 확보하기 위한 감마선 조사의 사용에서 품질을 유지하기 위해서는 진공포장으로 유통하는 것이 바람직하다고 판단된다.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
• /
• v.19 no.1
• /
• pp.35-41
• /
• 2013

This study investigated the effect of functional MA films (FMA) incorporated with zeolite powder treated with 1 N HCL solution and anti-fogging agent on the freshness extension of Satsuma mandarin. Preference, weight loss, total ascorbic acid, sugar content, titratable acidity and gas composition in package of Satsuma mandarin were evaluated during storage at $15^{\circ}C$. After 120 days of storage, the weight loss of mandarin packed with LLDPE film (control, L) was 1%, FMA film (CA) was 1.6%. Total ascorbic acid content of Satsuma manderin in control was 19.97 mg%, those of CA was 24.25 mg%. The titratable acidity of Satsuma manderin in CA was higher than that of control, while soluble solids content of CA was lower than that of control after 120 days. Ethylene gas content of control was 89.5 ppm and those of CA was 73.6 ppm after 120 days. Quality of Satsuma mandarin packed with CA was better than that of control. It was verified that shelf-life of Satsuma mandarin in control was 100 days and those of CA film was 130 days. Quality of Satsuma mandarin was few different between treated with anti-fogging agent and non-treated, but commodity of film treated with anti-fogging agent was considered better than that of non-treated.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.33 no.5
• /
• pp.888-893
• /
• 2004

The effect of irradiation and packaging methods (vacuum vs aerobic) on microbial growth, electron donating ability, and lipid oxidation in marinated beef rib (Galbi) was investigated. The total aerobic bacteria in Gazlbi reduced significantly with the increase of irradiation dose, and the effect was more significant in the Galbi with vacuum packaging, The pH showed a decreasing trend during storage and this change was more significant in the Galbi with aerobic packaging. Electron donating ability of Galbi was reduced by irradiation in aerobic packaging but no difference was found in vacuum packaging except 7 days. The 2-thiobarbituric acid reactive substances (TBARS) value of Galbi increased by irradiation in aerobic packaging during storage time, but that of vacuum packaging was maintained an initial value. Results indicated that irradiation coupled with vacuum packaging may enhance the microbial safety of Korean traditional meat products, Galbi, with minimum quality changes during storage.

• Journal of Food Hygiene and Safety
• /
• v.24 no.4
• /
• pp.373-377
• /
• 2009

From April 2008 to January 2009, a total 458 raw milk samples were randomly collected from 15 stock raising farms located in northern area of Kyunggi province and cultured for the presence of Enterococci spp. A total 170 enterococcal isolates were recovered from the raw milk samples. Enterococcus faecalis was predominant species recovered (64.7%), followed by E. faecium (18.8%), E. avium (5.9%), E. gallinarum (5.9%) and E. durans (4.7%). Antimicrobial resistance patterns of 170 Enterococci spp. against ampicillin, erythromycin, tetracyclin, chloramphenicol, vancomycin, ciprofloxacin and streptomycin were tested. According to the result, they showed high level resistance to erythromycin and streptomycin (82,9% and 93,5% respectively), moderately resistance to ampicillin, chloramphenicol and tetracyclin (50%, 45.9% and 32%, respectively) but fortunately, vancomycin and ciprofloxacin are still effective against this species.

• Sijohaknonchong
• /
• v.23
• /
• pp.5-32
• /
• 2005

The life of man is being changed with the changes of the times. The man struggles to enjoy the blessing of peace and lives as a member of a nation. So he has the national characteristics. In that national characteristics is the national emotion. From the emotion the national poetry is created. The poetry has the conventional form. This form is regarded as Sijo(時調). The Sijo was prescribed as the organization three sections. But this prescription is false. This form is the organization of five sections. When the false prescription is corrected, we have our conventional poetry form and create our own poems.

• Textile Coloration and Finishing
• /
• v.7 no.2
• /
• pp.77-85
• /
• 1995

섬유와 인류의 관계는 실로 5,000년이 넘는다. $\ulcorner$섬유$\lrcorner$라고 하면 많은 사람들이 $\ulcorner$의복$\lrcorner$만을 연상한다. 따라서 의복이 왜 그렇게 대단한 기술이며 과학이겠는가 하고 반문하는 사람도 있다. 이는 의복이라는 단순한 개념의 섬유만을 상상하기 때문이다. 장구한 의복의 역사가 곧 섬유의 역사라고 생각하는 것 또한 무리는 아니다. 그런데 최근 우리의 경제부흥에 가장 큰 공헌을 한 산업이 섬유산업이라는 데는 이의가 있을 수 없다. 지금 세계의 섬유산업은 내실 크나큰 변화를 일으키고 있다. 이는 장구한 세월동안 축적되어 온 섬유기술이 새로운 첨단산업을 탄생시키고 새로운 산업분야를 형성시키고 있기 때문이다. 지금 섬유산업은 르네상스를 맞이하고 있다는 것이 현실이며, 섬유기술은 고차원적인 첨단기술시대를 열어가고 있다. 선진 제국들은 중요한 테크놀로지의 하나로 신소재공학 기술을 열어가고 있다. 그 예로서 항공, 우주, 해양, 원자력, 토목, 건축 분야 등에서 요구하고 있는 고강도 고탄성의 섬유, 내열, 방염, 내부식성인 즉 내환경성의 섬유, 일렉트로닉스 분야의 도전성, 압전성, 광전성, 방사선 차단성, 흡진성, 도광성의 특수기능섬유, 라이프사이언스분야의 생체적합성, 혈액적합성, 고분리기능성 등과 같은 바이오섬유, 이 모든 것들은 21세기 각 분야의 첨단공학을 실현시키는데 필요불가결한 것들이다.

• Food Science and Preservation
• /
• v.5 no.4
• /
• pp.331-334
• /
• 1998

Weight loss of table Grape packed with control(Corrugated paperboard box), LDPE, CE(MA film masterbatched by ceramic powder treated cemical reagent) and FC box(laminated by CE film pouch) at 25 C after 10 days were 5.6%, 0.4%, 0.6%, and 0.7%, respectively. Weight loss of control was 7.29times higher than that of FC box. Total ascorbic acid content(TAA) of table grape after 10 days was 3.42 mg% for control, was 5.33 for LDPE and 5.14mg% for CE, 4.98mg% for FC. TAA of LDPE and CE showed to higher than that of control, especially TAA of FC was 33% higher than that of control. Titratable acid of LDPE and CE was high compare to control, and acidity of FC was 6% higher than that of control. References in overall appearance of LDPE, CE and FC were better than that of control. Corrugated paperboard box(FC) laminated with functional MA film showed to be able to used as packaging box of table grape.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
• /
• v.19 no.1
• /
• pp.43-50
• /
• 2013

This study investigated the effect of functional MA films (FMA) masterbatched by zeolite powder treated with 1 N HCl solution and anti-fogging agent (CA) on the freshness extension of 'Fuji' Apples. Preference, weight loss, total ascorbic acid, sugar content, acidity, change of gas composition in package were evaluated during storage at $15^{\circ}C$. After 150 days of storage, the weight loss of LLDPE film (control, L) apples was 0.4%, and that of apple in FMA film (CA) was 1.1%. Total ascorbic acid content of apples in control after 150 days was 2.09 mg%, and those of apple in FMA film was 2.94 mg%. The titratable acidity of apple in FMA film was higher than that in control, while soluble solids content of packages was lower than that in control after 150 days. Ethylene gas adsorbability in control package was 192.2 ppm and those in FMA film was 165.6 ppm. Overall, apples in FMA film was better than that of control. It was verified that apples packed with LLDPE film(control) lasted about 130 days, while those with FMA film lasted about 170 days. Also, FMA film treated with anti-fogging agent achieved no significant effect on freshness extension compared to non-treated film, but quality of 'Fuji' Apples was improved by anti-fogging agent when compared to that of non-treated anti-fogging agent.

• Food Science of Animal Resources
• /
• v.27 no.4
• /
• pp.469-474
• /
• 2007

The aim of this study was to investigate the quality changes in Supraspinatus muscle of Hanwoo with different packaging methods, such as wrapped packaging (C), vacuum packaging (V) and modified atmosphere packaging (MA). These samples were stored for 25 days under $5^{\circ}C$. Each sample was evaluated for pH, volatile basic mitrogen (VBN) value, purge loss, hardness, meat color and microbial counts. From the results obtained, no significant differences were observed among treatments at the pH. The VBN values of MA were significantly lower than those of C. Also, MA was enhanced stability of meat color compared with other packaging methods during storage days. The purge loss was the most in the V samples, followed by the C and the MA was the lowest. Total bacteria counts of MA sample were significantly lower than those from C. Therefore, it has been concluded that MA could be used as an effective packaging since it extends the shelf life and improve the quality of Hanwoo supraspinatus m.

• Journal of Sericultural and Entomological Science
• /
• v.28 no.2
• /
• pp.35-37
• /
• 1986

To reduce the number of rearing season required for preservation of multivoltine silkworms which do not produce diapause eggs, the optimal egg stage, temperature, and period of cold storage were examinede using hatchability as an indicator of viability. Multivoltine silkworm starains MR, SPT, and HM were used in the study. 1. The hatchability of multivoltine silkworm eggs (MR and STP) preserve at 5$^{\circ}C$ for 30 days was 80% for the eggs chilled from 2 days after oviposition but less 5% for those chilled from 7 days after ovipostion. 2. When 2 day-old eggs of multivoltine silkworm (HM) were preserved between -2.5$^{\circ}C$ to 7.5$^{\circ}C$ for 15 to 60 days, $0^{\circ}C$ and 2.5$^{\circ}C$ showed the highest hatchability with 91% at 30 days and 61% at 60 days storage, respectively. 3. From these results, it can be concluded that by preserving 2 day-old eggs at 2.5$^{\circ}C$ for 50 to 60 days, rearing seasons required for preservation of the multivoltine silkworm can be reduced to half per year.