• Title/Summary/Keyword: Quality Preservation

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Optimization in Recipe of Sous Vide Packaged Seasoned Beef (Sous vide 포장된 소고기 장조림의 배합비 최적화)

  • Sung, Ho-Jung;Lyu, Eun-Soon;Lee, Dong-Sun
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.14 no.2
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    • pp.65-72
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    • 2008
  • Vinegar and/or sake are often added for preservation hurdle in Korean seasoned beef product, affecting sensory quality. Sous vide packaging formerly developed requires optimization of formulation recipe in these ingredients. Therefore this study looked into the effect of vinegar and sake on the sensory quality attributes by response surface methodology. The addition of vinegar lowered the product pH significantly but sake addition did increase it slightly. Water activity did not change with the addition of these. Ten day storage at $8^{\circ}C$ did not make any significant changes in salt content and water activity. The added vinegar and/or sake in the formulation degraded the hedonic sensory scores of the product. The storage of the product made the degradation effect less pronounced. For the stored product the effect of sake on taste, texture and flavor was greater than that of vinegar. The respective addition of vinegar and sake less 4.0 and 4.5% could maintain the required sensory quality and thus was suggested in this study as their affordable use level for preservation hurdle.

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CA Storage for Ginger Depending on CO2 Concentrations (탄산가스 농도에 따른 생강의 CA 저장효과)

  • 정문철;이세은
    • Food Science and Preservation
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    • v.5 no.2
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    • pp.133-137
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    • 1998
  • In order to establish effectiveness of CA storage and adequate CO2 concentration, it was investigated the quality chanties of Singer during CA storage for 150 days at different CO2 concentrations ranging from 3% to 12% and 3% fixed oxygen concentration. Weight loss tend to decrease with increase of CO2 concentrations. Sprouting ratio and the loss of gingerol was shown to be less as CO2 concentration increase but to be more than control stored at 12$^{\circ}C$, 95% RH within the concentration less than 6% CO2.

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A Study on the Quality of Liner Board Used Corrugated Fiberboard Container of Apples (사과포장용 골판지 라이너원지의 품질에 관한 연구)

  • 하영선;김수일
    • Food Science and Preservation
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    • v.5 no.2
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    • pp.150-153
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    • 1998
  • As strait As a result of the quality research of liner boards used for the national-made corrugated boxes for apples, basis weight of each sample passed its tolerance within 4%. We found that KA, WLK, and SC liner boards showed better in relative bursting strength. SC, WLK, KA, and SK performed better in relative compression strength. WLK201 and KA210 were good for the outside liner, and K2200 was adequate for medium and inside liner. we classified WLK and KA liner boards as A grade and others as C grade.

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A Study on Benefits of Digital Preservation of Research Data (디지털 연구데이터 장기보존의 편익에 대한 연구)

  • Hyun, Moonsoo
    • Journal of Korean Society of Archives and Records Management
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    • v.11 no.1
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    • pp.161-181
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    • 2011
  • The study identifies benefits arising from the digital preservation of research data. Through analysing studies on digital preservation and digital research data in a economic perspective, broad benefits from digital preservation of research data have been identified and analysed quantitatively as well as qualitatively. It provides the starting point of systematic management and preservation of digital research data. Furthermore, it attempts modelling for investigating and producing benefits both in quantity and quality that is fundamental to promote investments.

The role of gonadotropin-releasing hormone agonists in female fertility preservation

  • Lee, Jae Hoon;Choi, Young Sik
    • Clinical and Experimental Reproductive Medicine
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    • v.48 no.1
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    • pp.11-26
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    • 2021
  • Advances in anticancer treatments have resulted in increasing survival rates among cancer patients. Accordingly, the quality of life after treatment, particularly the preservation of fertility, has gradually emerged as an essential consideration. Cryopreservation of embryos or unfertilized oocytes has been considered as the standard method of fertility preservation among young women facing gonadotoxic chemotherapy. Other methods, including ovarian suppression and ovarian tissue cryopreservation, have been considered experimental. Recent large-scale randomized controlled trials have demonstrated that temporary ovarian suppression using gonadotropin-releasing hormone agonists (GnRHa) during chemotherapy is beneficial for preventing chemotherapy-induced premature ovarian insufficiency in breast cancer patients. It should also be emphasized that GnRHa use during chemotherapy does not replace established fertility preservation methods. All young women facing gonadotoxic chemotherapy should be counseled about and offered various options for fertility preservation, including both GnRHa use and cryopreservation of embryos, oocytes, and/or ovarian tissue.

Analysis of Quality Change during Preservation by a Prototype Drink Containing a Helianthus annuus Seed Extract (해바라기씨 추출물 함유 음료의 저장기간 중 품질 특성 분석)

  • Lee, Jin-Man;Kang, Bok-Hee;Lee, Sang-Han
    • Food Science and Preservation
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    • v.16 no.2
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    • pp.299-303
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    • 2009
  • To explore the preservation parameters of a prototype anti-inflammatory drink containing a Helianthus annuus seed extract, we first examined sweetness, pH and color changes, and temperature effects during preservation. Over 25 days, pH rose slightly from 3.50 to 3.65. Small color changes in L, a, and b values occurred on prolonged storage. Temperature most affected storage properties, which differed considerably at $10^{\circ}C$ and $40^{\circ}C$. Microbiological safety tests showed that the prototype drink was safe; neither general bacterial contamination nor Escherichia coli growth occurred. We concluded that the prototype drink was biologically and microbiologically safe on preservation.

Duration of Preservation Affect the Quality of Chilled Black Bengal Buck Semen

  • Pradhan, Md. Gulshan Anowar;Rahman, Md. Saidur;Kwon, Woo-Sung;Mishra, Dipendra;Kamal, Md. Mostofa;Bhuiyan, Mohammad Musharraf Uddin;Shamsuddin, Mohammed
    • Journal of Embryo Transfer
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    • v.28 no.2
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    • pp.113-119
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    • 2013
  • The study focuses on the quality assessment of Black Bengal buck semen preserved at chilled condition. In this in vitro trial, collected semen from Black Bengal bucks was preserved at chilling temperature ($4{\sim}5^{\circ}C$) in tris-glucosecitrate yolk medium of 1:5 ratios for four days. Artificial Vagina (AV) method was utilized to collect semen from buck. General evaluation of semen includes the color, mass activity and density were measured by direct visual examination. However, computer-assisted sperm analysis (CASA) and phase contrast microscopy were used to figure out the motility (%), hyper-activated (HYP) motility (%) and number of abnormal spermatozoa (%) initially, and at every 24 h intervals. The result revealed that spermatozoa preserved at chilling temperature showed significantly (P<0.05) lower motility and HYP motility with the progression of preservation. The number of phenotypically abnormal spermatozoa significantly (P<0.05) increased following preservation. Although significant positive correlation (r=0.945; P<0.05) was existed between % motile and % HYP motile spermatozoa however, the % of morphologically abnormal spermatozoa was negatively correlated with % motile (r=-0.997; P<0.05) and % HYP motile spermatozoa (r=-0.946; P<0.01). Therefore, we concluded that the quality of chilled semen progressively losses its viability and doesn't remain useable after certain period of preservation with respect to its motility and morphology.

Factors for Postoperative Gallstone Occurrence in Patients with Gastric Cancer: a Meta-analysis

  • Chen, Xiang-Jun;Li, Nian;Huang, Ying-De;Ren, Shuang;Liu, Fang;Chen, Lian;Wang, Yong;Chen, Min
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.2
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    • pp.877-881
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    • 2014
  • Objective: To evaluate risk factors for gallstones after gastrectomy. Methods: To identify documents published from 1990 to 2011 the Pubmed, Cochrane Library, Springer Link, CBM and WanFang databases were searched and a meta-analysis was performed with RevMan 5.2 software for odds ratios and 95%CIs. Results: Fifteen studies were selected for the meta-analysis. The pooled ORs [95%CIs] were 0.56 [0.43, 0.73], (P<0.0001) for digestive tract reconstruction, 0.80 [0.54, 1.17], (P=0.25) for pylorus preservation, 0.33[0.15, 0.75], (P=0.008) for resection scope of stomach, 0.33 [0.15, 0.75], (P=0.008) for lymphadenectomy, and 0.13 [0.05, 0.33], (P<0.0001) for vagotomy. Conclusions: Digestive tract physical reconstruction and vagus nerve preservation can reduce the morbidity of gallstones after gastrectomy. Total gastrectomy can add to the morbidity of galltones as does increasing the degree of lymph node dissection. There was no significant difference in gallstones with or without pylorus preservation.

Effect of Cutting Height on the Feed Value and Drying Rate of Rye (Secale cereale L.) Hay

  • Li, Yu Wei;Kim, Jong Geun
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.37 no.3
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    • pp.201-207
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    • 2017
  • Hay-making is one of the most common forage preservation practices in livestock operations. The objective of hay-making is to minimize nutrient loss by shortening field drying time. Measuring the impacts of cutting height of forage crop is necessary to optimize hay production balancing yield and quality, in order to obtain substantial biomass increase through harvest of regrowth. This experiment was conducted to investigate the impact of cutting height of rye (Secale cereale L.) on drying rate and hay quality. Heading stage rye was harvested at 8cm or 15cm stubble heights. Hay was daily tedded at 09:00 and sampled at 09:00, 13:00 and 17:00 to determine moisture content (MC). After two month of preservation, CP (crude protein), ADF (acid detergent fiber), NDF (neutral detergent fiber), IVDMD (in vitro dry matter disappearance), TDN (total digestible nutrient), RFV (relative feed value), DM (dry matter) loss, visual scores and total fungi count were determined for estimation of hay quality. Cutting height at 15cm could enhance the drying rate and CP content (p<0.05), but also increases DM loss (p<0.05) compared to cutting at 8cm. Cutting heights did not affect ADF, NDF, IVDMD, TDN and RFV value (p>0.05). Visual scores of rye hays cutting at 8cm and 15cm, ranged from 83 to 85. Cutting at 8cm tended to maintain higher core bale temperature and fungal count than cutting at 15cm during preservation, but there was no significant difference.