• Korean Journal of Plant Resources
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• v.35 no.5
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• pp.686-695
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• 2022

The grain yield and flour quality of winter wheat (Triticum aestivum L. 'Jokyung') were investigated in the paddy fields in which the double-cropping of wheat linked to rice (Oryza sativa L.) and its alternative crops [black soybean (Glycine max (L.) Merr.), sesame (Sesamum indicum L.), and perilla (Perilla frutescens (L.) Britton)] was applied. In the soils in which black soybean, sesame, and perilla as pre-crops were cultivated, the soil pH was higher and the electrical conductivity was lower than in the rice pre-cropped soil. In addition, the available phosphate (Av. P₂O₅), and contents of Ca²⁺ and Mg²⁺ were higher than in the rice pre-cropped soil. Winter wheat growth characteristics such as culm length, spike length, number of spikes and grains were generally favorable in the black soybean pre-cropped soil. However, the grain yield of winter wheat increased in the black soybean, sesame, and perilla pre-cropped soils by 100 kg/10a or more than in the rice pre-cropped soil. Furthermore, protein content and SDS-sedimentation value of the flour were higher, while amylose content was slightly lower, in the black soybean, sesame, and perilla pre-cropped soils than in rice pre-cropped soil. These results suggest that cultivation of rice alternative crops such as sesame, black soybean, and perilla as pre-crops in paddy soil could improve the physical and chemical properties of the soil and contribute to producing high-quality wheat flour more advantageous for the baking process.

• Nutrition Research and Practice
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• v.16 no.5
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• pp.549-564
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• 2022

BACKGROUND/OBJECTIVES: Oxidative stress is caused by an imbalance between harmful free radicals and antioxidants. Long-term oxidative stress can lead to an "exhausted" status of antioxidant defense system triggering development of metabolic syndrome and chronic inflammation. Green perilla (Perilla frutescens) is commonly used in Asian cuisines and traditional medicine in southeast Asia. Green perilla possesses numerous beneficial effects including anti-inflammatory and antioxidant functions. To investigate the potentials of green perilla leaf extract (PE) on oxidative stress, we induced oxidative stress by high-fat diet (HFD) in aging mice. MATERIALS/METHODS: C57BL/6J male mice were fed HFD continuously for 53 weeks. Then, mice were divided into three groups for 12 weeks: a normal diet fed reference group (NDcon), high-fat diet fed group (HDcon), and high-fat diet PE treated group (HDPE, 400 mg/kg of body weight). Biochemical analyses of serum and liver tissues were performed to assess metabolic and inflammatory damage and oxidative status. Hepatic gene expression of oxidative stress and inflammation related enzymes were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS: PE improved hepatopathology. PE also improved the lipid profiles and antioxidant enzymes, including hepatic glutathione peroxidase (GPx) and superoxide dismutase (SOD) and catalase (CAT) in serum and liver. Hepatic gene expressions of antioxidant and anti-inflammatory related enzymes, such as SOD-1, CAT, interleukin 4 (IL-4) and nuclear factor erythroid 2-related factor (Nrf2) were significantly enhanced by PE. PE also reduced the levels of hydrogen peroxide (H₂O₂) and malondialdehyde (MDA) in the serum and liver; moreover, PE suppressed hepatic gene expression involved in pro-inflammatory response; Cyclooxygenase-2 (COX-2), nitric oxide synthase (NOS), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6). CONCLUSIONS: This research opens opportunities for further investigations of PE as a functional food and possible anti-aging agent due to its attenuative effects against oxidative stress, resulting from HFD and aging in the future.

• Journal of Naturopathy
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• v.7 no.2
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• pp.70-74
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• 2018

Purpose: This study was conducted to investigate the antioxidative, collagenase and elastase activities of defatted perilla ethanol extracts. In addition, the possibility of its use as a functional cosmetic material has been studied. Methods: In order to investigate the antioxidant function of the perilla extract, electron spin resonance (ESR) was measured with a spectrometer by analyzing the scavenging ability of diphenyl-β-picrylhydrazyl (DPPH) free radicals. Results: The antioxidant activity of DPPH free radical scavenging activity of the perilla extract was about 68% at 85 ㎍/ml, 85% at 20 ㎍/ml, 90% at 40-100 ㎍/ml, and showed antioxidant ability. The inhibitory activity of collagenase was increased to 4.1% at 20 mg/ml, 12% at 40 mg/ml and 26.7% at 100 mg/ml. The inhibitory activity increased in proportion to the concentration. The inhibitory activity of elastase was increased to 3.8% at 20 mg/ml, 15% at 40 mg/ml, 28% at 80 mg/ml and 35.7% at 100 mg/ml. Conclusions: These results suggest that the ethanol extract of perilla may inhibit the antioxidant activity and the activity of collagenase and elastase to improve the skin aging and wrinkles.

• 한국약용작물학회:학술대회논문집
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• 2011.04a
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• pp.216-217
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• 2011

• Korean Journal of Pharmacognosy
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• v.27 no.4
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• pp.328-335
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• 1996

Effects of hydrogen peroxide$(H_2O_2)$ on polyphenol oxidase (PPO) in Perillae Folium were investigated. The inactivation of this enzyme was dependent on $H_2O_2$ concentration. and the initial lag period was not shown. Preincubation of Perillae Folium PPO with $H_2O_2$ in the absence of a substrate resulted in rapid loss of enzymatic activity. The inactivation of PPO by $H_2O_2$ dependents temperature and pH. OH radical scavengers such as mannitol and sodium formate did not protect the enzyme against inactivation by $H_2O_2$. Substrate analogue such as phenylalanine protected the enzyme against inactivation by $H_2O_2$. and copper chelator such as sodium azide also protected the enzyme.

• Korean journal of applied entomology
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• v.35 no.1
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• pp.15-17
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• 1996

Acanthopsyche nigraplaga Wileman, Psychidae is reported for the first time from Korea with a brief redescription and illustration of its male genitalia. Their food plants, Gomphrena globosa L., Rhubus parvifolius L. var. triphyllus N., Perilla frutescens B. var. acuta K., Menispermum dahuricum Dc., and Chenopodium album L. are also newly reported.

• 한국약용작물학회:학술대회논문집
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• 2009.05a
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• pp.167-168
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• 2009

• Proceedings of the Korean Society of Crop Science Conference
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• 2003.05a
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• pp.48-48
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• 2003

• YAKHAK HOEJI
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• v.40 no.1
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• pp.65-71
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• 1996

Characterization of Polyphenol oxidase (PPO) in Perillae Folium, particullarly inhibitor studies were investigated. This enzyme was stable at pH 5.0 and the residual activity of PPO at ${\geq}$ ph 5.5 was estimated to be very low. PPO activity was decreased slightly by adding amino acid with catechol as a substrate, particullary PPO activity was inhibited markedly by cystein, histidine, lysine and arginine. In the absorption spectra of the product formed when catechol was oxidized by PPO, with a ${\lambda}_{max}$ at 410nm, the peak shifted toward ${\lambda}_{max}$ 520nm by addition of L-proline. At relatively low concentrations($10^{-3}M$), sulfite and dithiothreithol completely inhibited PPO activity. Inhibition of PPO activity by amino acids and inhibitors increased or decreased depending on the pH used to measure it.

• 한국약용작물학회:학술대회논문집
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• 2008.05a
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• pp.262-263
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• 2008