• Preventive Nutrition and Food Science
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• 제17권2호
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• pp.109-115
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• 2012

This study was designed to investigate the inhibitory effects of Perilla frutescens (L.) Britton var. frutescens extract on the production of inflammation-related mediators (NO, ROS, NF-${\kappa}B$, iNOS and COX-2) and pro-inflammatory cytokines (TNF-${\alpha}$, IL-$1{\beta}$, IL-6) in lipopolysaccharide-stimulated RAW 264.7 macrophages. Perilla frutescents (L.) Britton var. frutescens was air-dried and extracted with ethanol. The extract dose-dependently decreased the generation of intracellular reactive oxygen species and dose-dependently increased antioxidant enzyme activities, such as superoxide dismutase, catalase and glutathione peroxidase in lipopolysaccharide stimulated RAW 264.7 macrophages. Also, Perilla frutescens (L.) Britton var. frutescens extract suppressed NO production in lipopolysaccharide-stimulated RAW 264.7 cells. The expressions of pro-inflammatory cytokines (TNF-${\alpha}$, IL-$1{\beta}$ and IL-6), NF-${\kappa}B$, iNOS and COX-2 were inhibited by the treatment with the extract. Thus, this study shows the Perilla frutescens (L.) Britton var. frutescens extract could be useful for inhibition of the inflammatory process.

• Journal of Microbiology
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• 제45권2호
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• pp.128-132
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• 2007

The red yeast Xanthophyllomyces dendrorhous (previously named Phaffia rhodozyma) produces astaxanthin pigment among many carotenoids. The mutant X. dendrorhous G276 was isolated by chemical mutagenesis. The mutant produced about 2.0 mg of carotenoid per g of yeast cell dry weight and 8.0 mg/L of carotenoid after 5 days batch culture with YM media; in comparison, the parent strain produced 0.66 mg/g of yeast cell dry weight and a carotenoid concentration of 4.5 mg/L. We characterized the utilization of carbon sources by the mutant strain and screened various edible plant extracts to enhance the carotenoid production. The addition of Perilla frutescens (final concentration, 5%) or Allium fistulosum extracts (final concentration, 1%) enhanced the pigment production to about 32 mg/L. In a batch fermentor, addition of Perilla frutescens extract reduced the cultivation time by two days compared to control (no extract), which usually required five-day incubation to fully produce astaxanthin. The results suggest that plant extracts such as Perilla frutescens can effectively enhance astaxanthin production.

• 한국식품저장유통학회지
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• 제6권2호
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• pp.239-244
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• 1999

자소잎중 물과 에탄올을 이용하여 얻은 추출물을 2종의 부패곰팡이(Aspergillus flavus KCTC 6143, Aspergillus jlavus KcrC 6961) 및 5종의 식중독세균 ( isteria monocytogenes ATCC 15313, Staphylococc따 aureus 196E ATCC 13565, Escherichia coli 0157:H7 ATCC 43895, Salmonella typhimurium ATCC 13311, Yersinia enterocolitica)에 대하여 항균효과를 조사하였다. 생육증식 저해농도를 disk method로 검색한 결과 에탄올추출물에서 그 효과가 인정되어 5종의 식중독 세균에 대하여 자소잎 에탄올 추출물을 농도별로 첨 가한 후 그 효과를 비교하였다. Gram양성균(L. monocytogenes, S. aureus)의 경우가 Gram음성균(E. coli 0157:H7, S. typhimurium, Y. enterocolitica)에 비하 여자소잎 에탄올추출물에 의한 증식억제효과가 추 출물 $1000\mu\textrm{g}$/mL 농도 첨가구에서 월둥히 컸으며 생 육증식억제효과의 크기는 L. monocytogenes, S. aureus, S. typhimurium의 순이었고, E. coli 0157:H7과 Y enterocolitica균에 대한 생육증식억제 효과는 농도첨 가별에 따라 생육증식이 비례적으로 억제되었다. 자 소잎 에탄올 추출물은 $121^{\circ}C$에서 15분간 가열처리한 후에도 항균력이 인정되었다.

• 생약학회지
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• 제47권1호
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• pp.79-83
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• 2016

This study developed an HPLC analysis method for the determination of isoegomaketone (IK) and perillaketone (PK) in Perilla frutescens (L.) Britton leaves. P. frutescens ethanol extract was optimized through an HPLC analysis using a C18 column ($250{\times}4.6mml$, D, $S-5{\mu}m$, 12 nm) with gradient elution of water and acetonitrile as the mobile phase at a flow rate of 1 mL/min and a UV detection wavelength of 254 nm. The results of this method showed linearity in the calibration curve at a coefficient of correlation ($R^2$) of IK 0.9995, PK 0.9998. The limits of detection (LOD) for IK and PK were $0.234{\mu}g/mL$ and $0.952{\mu}g/mL$. The limits of quantification (LOQ) for IK and PK were $0.017{\mu}g/mL$ and $0.043{\mu}g/mL$. The inter-day precision RSDs of IK and PK in the P. frutescens were 1.25 to 2.69% and 0.36 to 1.10%, respectively, and the intra-day precision RSDs of IK and PK were 0.96 to 2.51% and 0.90 to 1.93%, respectively. The accuracies of IK and PK were 96.31 to 97.92% and 101.26 to 105.14%. In conclusion, this method was applied successfully to the detection of IK and PK in P. frutescens.

• Plant Biotechnology Reports
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• 제4권3호
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• pp.229-235
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• 2010

In this study, we established an in vitro regeneration system to maximize the recovery of leafy perilla (Perilla frutescens L. Britton) plantlets as part of developing a molecular biotechnology-based metabolic engineering program for this crop plant. Hypocotyl segments including the apical buds were used as explants for the direct production of shoots without an interim callus phase. The number of shoots produced from the apical buds peaked within 3-4 weeks, and the shoots were subsequently cultured on Murashige and Skoog (MS) media supplemented with 2 mg $1^{-1}$ benzylaminopurine (BA). Spontaneous rhizogenesis was observed after 7-10 days of culture on MS media without hormonal additives. The rooted shoots developed into normal plants in soil after hardening on distilled water for 3-4 days. The average plantlet regeneration frequency was higher for the apical buds (64.33%) than for the top (15.66%), middle (4%), and basal (1.33%) segments of the hypocotyls. This regeneration system demonstrates a capacity for high-frequency plantlet recovery and thus should be considered for use in the genetic manipulation of leafy perilla.

• 한국식품조리과학회지
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• 제16권3호
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• pp.221-225
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• 2000

건조된 소엽의 정유를 초임계유체추출법으로 추출한 후 GC/MS로 분석한 결과 24가지의 휘발성 향미성분이 확인되었다. 탄화수소류는 4종, 알데히드류는 전체 peak area의 19.95%로 3종이 확인되었다. 알콜류 8종, 산류 3종, 에스터류 4종 및 기타 2종 확인되었다. 소엽의 주요 휘발성 향미성분은 L-perillaldehyde로 여겨진다. 소엽가루가 누린내 및 비린내에 미치는 영향을 관능검사 하였다. 소엽을 0.05%, 0.1% 및 0.2% 첨가하였을 때 돼지고기대조군과 후추 0.1%첨가군에 비하여 돼지고기의 누린내가 감소되었다. 소엽의 독특한 향기는 0.2% 첨가하였을 때 가장 강하였고 전체적인 선호도는 3가지 소엽첨가군이 가장 높았다. 닭고기대조군에 비하여 후추 0.1%첨가군과 소엽 0.05%, 0.1% 및 0.2%첨가군에서 닭고기의 누린내가 유의적으로 낮게 나타났다. 닭고기에 소엽을 0.1% 및 0.2% 첨가하였을 때 향이 강하게 감지되었으며, 전체적인 선호도는 후추 0.1%첨가군과 3가지 소엽첨가군 모두 좋게 평가되었다. 고등어의 비린내는 후추 0.1%첨가군과 소엽 0.2%첨가군에서 현저하게 감소되었으며 소엽 0.1%첨가군도 고등어대조군보다 유의적으로 낮았다. 전체적인 선호도는 소엽을 첨가하였을 때 높게 나타났다.

• 대한의생명과학회지
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• 제24권4호
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• pp.398-404
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• 2018

To evaluate the antioxidant and anti-neuroinflammatory effects of defatted Perilla frutescens extract (DPE) in lipopolysaccharide (LPS)-stimulated BV-2 microglial cells. Cell viabilities were estimated by MTT assay. LPS-stimulated BV-2 microglia were used to study the expression and production of inflammatory mediators such as nitric oxide (NO), inducible NO synthase (iNOS), Cyclooxygenase-2 (COX-2), and prostaglandin $E_2$ ($PGE_2$). Pretreatment with DPE prior to LPS treatment significantly inhibited excessive production of NO (10, 25, 50, 75, and $100{\mu}g/mL$) in a dose-dependent manner, and was associated with down regulation of expression of iNOS and COX-2. DPE also suppressed the LPS-induced increase in $PGE_2$ level (10, 25, 50, 75, and $100{\mu}g/mL$) in BV-2 cells. Therefore, DPE can be considered as a useful therapeutic and preventive approach for the treatment of several neurodegenerative diseases.

• 한국응용과학기술학회지
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• 제35권1호
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• pp.12-19
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• 2018

자소엽(perilla frutescens)은 꿀풀과(Labiatae)에 속하며 널리 알려져 있는 약용 식물이다. 본 연구에서는 자소엽을 물, 열수, 초음파 추출 방법으로 추출하여 항산화 효과를 비교하고 가장 효과적인 추출방법을 제시하고자 한다. 물, 열수, 초음파 처리를 통해 각각의 자소엽 추출물을 제조 하였고, DPPH 라디칼 소거능 및 총 페놀 함량을 통해 항산화 효과를 검증하고, 인간 간세포인 HepG2에 대한 세포 독성효과와 hydrogen peroxide ($H_2O_2$)로 유도된 산화적 스트레스로부터 간세포 보호효과를 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay로 확인하였다. 자소엽 초음파 추출물은 $5000{\mu}g/mL$농도에서 69.07%의 DPPH 라디칼 소거능을 나타내며 물, 열수 추출물과 비교하여 우수한 항산화 효과를 나타내었다. 또한 총 페놀 함량 측정 결과 $51.60{\pm}1.06mg\;GAE/g$ extract 로서 물, 열수 추출물 보다 높은 총 페놀 함량을 확인하였다. 그러나 산화적 스트레스에 의한 세포 보호효과는 미비하였다. 본 연구를 통해 추출 방법에 따른 항산화 효과의 차이를 확인하였으며, 우수한 항산화 효과를 나타낸 자소엽 초음파 추출물을 이용하여 추가적인 연구가 필요 할 것으로 사료된다.

• Journal of Plant Biotechnology
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• 제34권1호
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• pp.69-73
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• 2007

들깨의 조직배양에서 배지의 생장조절제 조성은 0.1 mgyL의 NAA와 2.0 mg/L의 BA가 혼용된 배지에서 신초형성률이 24.7%로 가장 높게 나타났다. 신초형성에 적합한 배양부위는 자엽이었으며 품종별 신초형성율은 $3.0{\sim}27.3%$로 품종간 차이가 컸고, '만백들깨'의 자엽 배양에서 27.3%의 가장 높은 재분화율을 나타내었다. 조직부위별로는 공시된 모든 품종에서 배축보다는 자엽 조직에서 신초형성율이 높았으며, 신초의 분화형태는 배형성 (6.1%)보다 기관형성 (22.8%)을 경유하는 것이 많았다.

• 한국염색가공학회지
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• 제29권4호
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• pp.256-267
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• 2017

The purpose of this study was to analyze the functional ingredients of Perilla Frutescens L. Britt extracts and to confirm the possibility of producing PVA nanofibers using extracts. Distilled water, 3% aqueous sodium hydroxide solution and ethanol were used as extraction solvents. The electrospinning was carried out at a PVA concentration of 12%, an applied voltage of 10 kV and a tip to collector distance of 15cm. The contents of volatile substances, essential oils, total polyphenols and flavonoids of the extracts were measured to examine the constituents of functional materials. Flavor components and esters were identified in 3% sodium hydroxide and ethanol extracts. The content of polyphenols and flavonoids in ethanol extracts was higher than that of medicinal plants. 1wt.% of Tween 20 was added to disperse the essential oil components of the ethanol extract. Addition of a dispersant made it possible to produce a homogeneous mixture by having some compatibility with the ethanol extracts and the PVA molecule. When the concentration of the ethanol extract was 0.25 and 0.5wt%, relatively uniform PVA nanofiber having an average diameter of 350 to 365nm could be produced. The results of FT-IR, XRD and DSC analysis confirmed that Perilla Frutescens L. Britt ethanol extract was well mixed with PVA molecules and was electrospun.