• Journal of the Korean Wood Science and Technology
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• 제30권4호
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• pp.27-32
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• 2002

PEG 처리가 고함수율 상태의 방부처리 삼나무 원주가공재의 건조 할렬 방지 및 방부제의 침투성에 미치는 영향을 검토하였다. 농도 10%의 방부제(Basilit CFK) 용액에 1일간 침지 처리한 시험체의 표면에 노도 50%의 PEG-400을 각각 3, 5, 10획 도포하여 30일간 천연 건조한 후 할렬의 발생정도 및 변재부의 방부제 침윤도를 조사하였다. 변재부의 방부제 침윤도를 조사한 결과, 방부제 단독처리 시험체에서는 약 23.2%였으나 방부제 PEG 처리 시험체에서는 약 51.2~64.5%로 비교적 높은 값을 나타내 PEG처리에 의하여 방부제의 침투가 촉진된 것으로 추정되었다. 천연건조 기간 중에 방부제-PEG 처리 시험체에서의 건조 할렬 발생은 PEG 도포횟수의 증가와 함께 뚜렷하게 감소하였을 뿐만 아니라 발생된 몇 개의 할렬의 크기도 방부제 단독처리 시험체에서 발생한 것에 비하여 현저하게 작았다. 그러나 2개월간 옥외 폭로 후에는 방부제-PEG처리 시험체에서 많은 할렬이 발생하여 PEG 처리 효과가 인정되지 않았으나, PEG 처리 후, 폴리우레탄수지 래커로 도장 처리한 결과, 옥외 폭로기간 중에 할렬 발생이 뚜렷하게 방지되었다

• 한국축산식품학회지
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• 제42권2호
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• pp.280-294
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• 2022

This study aimed to evaluate the effectiveness of propolis extract as a natural preservative for livestock products in term of chemical and microbiological characteristics by meta-analysis. The stages carried out in this study were identification, selection, checking suitability, and the resulting selected articles were used in the meta-analysis. The selection results obtained a total of 22 selected journal articles consisting of 9 articles for analysis of the antimicrobial activity of propolis extract and 13 articles for analysis of the chemical and mirobiological characteristics of livestock products. The articles were obtained from electronic databases, namely Science Direct and Google Scholar. The model used in this study is the random-effect model involving two groups, control and experimental. Heterogeneity and effect size values were carried out in this study using Hedge's obtained through openMEE software. Forest plot tests and data validation on publication bias was obtained using Kendall's test throught JASP 0.14.1 software. The results showed that there is a significant relationship between propolis extract with the results of the antimicrobial activity (p<0.05). In addition, the results of the application of propolis extract on the livestock products for the test microbes and the value of thiobarbituric acid reactive substances (TBARs) showed significant results (p<0.05). Conclusion based on the random-effect model on the effectiveness of antimicrobial activity of propolis extract and their apllication as a natural preservative of the chemical and microbiological characteristics of livestock products is valid by Kendall's test (p>0.05). Propolis in this case effectively used as natural preservatives in livestock products.

• 한국식품영양과학회지
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• 제28권1호
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• pp.167-171
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• 1999

The production of emulsion sausage generally contain nitrite as a curing agent for preservative effect and color as well as flavor development. This investigation describe a study on the inhibitory effect of chitosan against some spoilage bacteria and substitution effect of nitrite in sausages. Among of the chitosan, M.W. 120KDa of chitosan has shown an antimicrobial effect. When 0.2% of chitosan and half of normal nitrite content were added to sausage, effect of preservative quality was same that added to normal content of nitrite in sausages. Sausage added to 0.5% of chitosan has been a good storage property even though without nitrite. The growth of most of bacteria was inhibited 80% or more at 0.01~0.2% of chitosan. These results indicated that M.W. 120KDa of chitosan as a natural material could provide sausage protection and very reduced or substituted amount of nitrite against spoilage bacteria.

• Journal of Ginseng Research
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• 제22권2호
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• pp.82-90
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• 1998

In order to stabilize the price of fresh ginseng by extension of seasonal variation and marketing structure, and to reduce the cost of production by works of intensive and short term, studies were carried out. As fresh ginseng of 4 years old by the MA and CA was stored for 12 week at 4$^{\circ}C$, samples were collected after every 1, 2, 3, 4, 6, 8, 12 weeks for processing red ginseng. Color and Sensual characteristics on ginseng steamed red for the quality evaluation are summarized as follows. For the time course of storage with red ginseng, which was processed from fresh one after various treatments, L and b values were decreased, however a value was increased. In particular, absorbance was step-wisely increased. Turbidity was somewhat increased, and non-treatment of preservative were shown 2 times higher of absorbance. Extraction ratio of ethanol-soluble extractives slightly increased by the preservation methods, and as storage period was passed. CA storage and preservative treat merit versus MA and non-preservative treatment gave much stability in ginseng quality. In the sensual characters, sour taste and sweet taste were increased, but fresh taste and rice scorched taste were decreased. Bitter taste was not much changed until end of storage. CA was shown smaller differences than MA in the pH change. Addition of preservative extended the storage time.

• 동아시아식생활학회지
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• 제7권1호
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• pp.65-70
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• 1997

To investigate the food preservative effects of leaf mustard Dolsan(Brassica juncea), the pretreated extract of leaf mustard Dolsan were added to Kimchi and the results are as following. pH of Kimchi added leaf mustard Dolsan extracts were lower than that of control at initial stage, but after 6 days of fermentation, pH was higher in order of Kimchi added the pretreated extract of leaf mustard Dolsan (hydrolyzed at 3$0^{\circ}C$ for 24 hours, PEM), the unpretreated extract of leaf mustard Dolsan(UEM) and control. The total number of bacteria and lactic acid bacteria increased rapidly at the initial stage of fermentation and reached plateau at 2 days of fermentation. The number of bacteria and lactic acid bacteria of Kimchi added leaf mustard Dolsan extracts were lower than that of control ,a and antimicrobial activity of PEM in Kimchi was higher than that of UEM. After 2 days fermentation, sensery value of Kimchi added PEM was more excellent than that of control.

• 한국응용과학기술학회지
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• 제33권2호
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• pp.333-341
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• 2016

산수유 종자 추출물의 천연 방부제로서 가능성을 평가하기 위하여 항균활성 및 화장품 방부 효능 평가를 실시하였다. 산수유 종자는 각각 1,3-부틸렌글리콜과 에탄올을 이용하여 추출하였다. Paper disc method로 항균활성을 평가한 결과 Staphylococcus aureus, Staphylococcus epidermidis와 Propionibacterium acnes에서 항균활성이 나타났으며 산수유 종자 1,3-부틸렌글리콜 추출물(COS-A)이 여드름균에대해 $26.7{\pm}4.0mm$로 가장 높았다. 최소저해농도(MIC) 측정 결과 산수유 종자 에탄올 추출물(COS-B)이 가장 낮은 농도에서 S. epidermidis균의 생장을 억제하였다. 에멀션에서의 방부효능 평가를 위해 Challenge test를 실시한 결과 COS-A와 COS-B를 첨가한 에멀션에서 균 접종 7일 후 피부상재균이 100% 사멸되었다. 이러한 결과는 산수유 종자 추출물이 화장품에서 합성방부제를 대체할 천연 방부제로서 가능성이 있을 것으로 사료된다.

• Journal of the Korean Wood Science and Technology
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• 제42권1호
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• pp.34-40
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• 2014

흰개미 방제 및 방곰팡이 효력이 입증된 저독성 네오티코치드계 목재보존제가 집성재 제조용 레조르시놀계 접착제의 접착력에 미치는 영향을 조사하였다. ACQ, CUAZ, 네오니코치드계 약제를 도포 처리한 다음 건조시킨 소나무 판재를 사용하였으며, 집성 접착 후에 블록 전단시험편을 채취하여 상태 및 촉진 열화 시험 후의 전단접착력과 목파율을 측정하여 비교하였다. ACQ 및 CUAZ 처리 집성재는 무처리 및 네오니코치드계 목재보존제 처리 집성재에 비하여 낮은 전단접착력을 보여 접착력 저하가 인정되었다. 이것은 이들 방부제 중에 함유되어 있는 구리화합물에 기인하는 것으로 판단되었다. 네오니코치드계 목재보존제 처리 집성재는 상태 및 촉진열화 시험 후에도 가장 우수한 전단접착력을 나타내 레조르시놀계 접착제의 접착성능에는 영향을 미치지 않는 것으로 판단하였다.

• 대한화장품학회지
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• 제34권4호
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• pp.325-331
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• 2008

본 연구는 천연 식물 추출물을 이용하여 화장품 제형 내에서 천연 방부제로서 효능을 확인하기 위한 목적으로 진행하였다. 선별된 15종의 천연 식물 추출물을 이용하여 병원성 세균(Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli)과 효모균(Candida albicans), 곰팡이균(Aspergillus niger)에 대한 paper disc법(disc diffusion method)과 최소저해농도측정법(MIC)을 이용하여 항균 활성을 측정하였다. 그 결과 가자, 오배자 추출물은 그람 양성인 S. aureus와 그람 음성균인 P. aeruginosa, E. coli 에 대한 항세균 활성이 우수하였고, 계피 추출물은 효모균인 C. albicans와 곰팡이균인 A. niger에 대해 우수한 항진균 활성을 나타냈다. 최종 선별된 3종 외 식물추출물은 효과가 없었다. 항균 활성 효과가 우수한 최적 조합비로 구성된 가자, 오배자, 계피 추출물의 혼합 추출물을 화장품 제형에 첨가하여 제형 내 방부 활성을 측정한 결과 상업적으로 널리 사용되고 있는 파라벤 혼합 방부제와 유사한 정도의 방부 활성을 나타냄을 확인하였다. 결론적으로, 화학 방부제를 대신하여 천연 식물 추출물로만 이루어진 넓은 항균 스펙트럼을 갖춘 방부 시스템의 개발이 가능할 것으로 사료되며 최근 다양한 문제가 제기되고 있는 화학 방부제의 단점을 극복한 천연 방부제를 함유한 화장료의 개발에 응용 가능할 것으로 기대된다.

• 한국식품조리과학회지
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• 제14권1호
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• pp.114-118
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• 1998

In ordo. to develop the natural food preservative agent, freeze dried dandelion (Taraxcum platycarpum) was extracted with several solvents, and antimicrobial activity was investigated. The methanol extract obtained from the dandelion exhibited antimicrobial properties against five strains such as Bacillus subtilis, Escherichia coli, Staphylococcus aureus, Listeria monocytogenes, and Vibrio parahaemolyticus. The methanol extract at the concentration of 2000 $\mu\textrm{g}$/ml completely inhibited the growth of B. subtilis, E. coli, L. monocytogenes and V. parahaemolyticus. Antimicrobial activity of the ethylacetate fraction from the methanol extract of dandelion was the strongest fraction compare to those the other solvent fractions such as n-hexane, chloroform, n-butanol and water. The ethylacetate fraction showed the inhibitory effect at the concentration of 0.5 mg/disc on the growth of the food spoilage microorganisms.

• 대한화장품학회:학술대회논문집
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• 대한화장품학회 2003년도 IFSCC Conference Proceeding Book II
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• pp.50-59
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• 2003

BMB-CF has been constituted of purified fractions of Scutellaria baicalensis, which has medicinal effect such as anti-microbial. anti-inflammation. fever remedy. anti-oxidation. and anti-aging effect etc.. It has been used in traditional medicine formula from long time ago in the east Asia. It is constituted of the active flavone ingredients such as baicalin. baicalein. DTF(Di-methyl Tetra -hydroxy Flavone), wogonin. wogonoside. $\beta$- Sitosterol. etc.. General purified fractions of Scutellaria baicalensis has the high portion of the baicalin which has the problem of narrow antimicrobial spectrum and compatibility against cosmetic formula. Now. we has been develop the new purificaton process of Scutellaria baicalensis that has the high rate of DTF content, which is improved in antimicrobial activity and cosmetics compatibility. So. we have assure that it is the potent preservative against various cosmetic formula.