• 한국식품영양학회지
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• 제34권2호
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• pp.165-173
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• 2021

Centella asiatica (CA) has been used as a nutritional plant as well as a traditional herbal medicine around the world. This study, quality component (proximate composition, total polyphenol, and triterpenoid compound), and antioxidant and anti-inflammatory activities of CA dried using various methods were investigated. Proximate compositions of CA with different drying methods included a large amount of carbohydrates, crude protein, crude ash, and crude fiber. Among the drying methods, cold drying provided the highest total polyphenol content and antioxidant activity, while hot-air drying at 75℃ provided the lowest total polyphenol content and antioxidant activity. In addition, when the major triterpenoid compounds of CA were analyzed, the highest content of asiaticoside of triterpenoid glycoside was obtained with all drying methods. With respect to the total triterpenoid, the highest content was obtained with cold drying (68.8 mg/g) whereas natural drying (31.4 mg/g) provided the lowest content. In anti-inflammatory activity of LPS-stimulated RAW 264.7 cells, EtOH extract of cold drying showed a significantly higher inhibitory activity in comparison to the other drying methods. In conclusion, it is considered that the cold drying method is suitable for industrial preparation of functional materials with high physiological ingredients, and antioxidant and anti-inflammatory activities from CA.

• 한국전자통신학회논문지
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• 제16권3호
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• pp.493-502
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• 2021

외부 환경변화에 적응하여 MPP를 추적할 수 있는 포복경 영양 번식(VPR; Vegetative Propagation by Runner) 최적화 알고리즘 기반 MPPT 알고리즘을 제시하였다. VPR 알고리즘은 영양기관을 기반으로 군집 이동 번식하는 식물 생태를 모방한 알고리즘으로 식물의 노화 및 부근(Rhizome)에 대한 주변탐색 절차를 수행하여 최적점 인근의 주변을 지속적으로 탐색할 수 있다. 따라서 VPR 기반 MPPT 알고리즘의 경우, MPPT 알고리즘이 수행되는 시점에 발생하는 외부 환경변화에 적응하여 최적점을 탐색할 수 있다. 본 논문에서는 다수의 모의실험을 통해 VPR 기반 MPPT 알고리즘의 성능을 분석하였다. 더불어 PSO(Particle Swarm Optimization) 기반 MPPT 알고리즘과 동일한 환경에서 성능 비교를 통해 성능의 우수성을 비교하였다.

• 한방비만학회지
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• 제22권1호
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• pp.21-29
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• 2022

Objectives: This study aimed to examine the changes in ingredients according to its cultivation method by examining the content of saponin and non-saponin components of ginseng. Methods: Ginseng saponin component analysis was compared and reviewed using the high-performance liquid chromatography method, and acidic polysaccharide component was measured using the carbazole sulfuric acid method. Results: The comparative analysis of ginseng saponin content of 4 and 6 years old fresh ginseng showed the following results. According to the cultivation method, upland field cultivation fresh ginseng showed higher average content of crude saponin than paddy field cultivation fresh ginseng. Whereas, paddy field cultivation fresh ginseng showed higher average content of total saponin than upland field cultivation fresh ginseng. Ginsenoside Rb1 showed higher content of paddy field cultivation fresh ginseng than upland field cultivation fresh ginseng in 6 years old ginseng. However, it showed higher content of upland field cultivation fresh ginseng than paddy field cultivation fresh ginseng in 4 years old ginseng. Additionally, ginsenoside Rg1 showed higher content of paddy field cultivation fresh ginseng than upland field cultivation fresh ginseng in 6 years old ginseng, whereas upland field cultivation fresh ginseng showed higher content of paddy field cultivation fresh ginseng in 4 years old ginseng. The effect on the content of ginseng saponins and acidic polysaccharides according to paddy field and upland field cultivation methods is considered to be small. Conclusions: The paddy field cultivation method, which is more efficient in production cost due to depletion of farmland and long-distance cultivation, is considered to be an economical cultivation method.

• 한국육종학회지
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• 제40권4호
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• pp.484-489
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• 2008

"영양보리"는 총체생산성이 높으며 사료 영양가가 우수한 보리품종을 개발하기 위하여 키가 크고 내습성이 강한 부농을 모본으로 하고 조숙 계통인 밀양55호를 부본으로 하여 1992년도 영남농업연구소에서 인공 교배하였다. 1993년 $F_1$을 양성한 후 1994년부터 1995년까지 집단육종법으로 $F_2$, $F_3$ 세대를 전개하였고, 1996년부터 1997년까지 계통육종법으로 $F_4$, $F_5$ 계통을 전개하여 초형 및 내병성이 우수한 YB3882-B-B-B-17-1 계통을 선발하였다. 1998년부터 1999년까지 2년간 생산력검정 예비시험과 생산력 검정 본시험을 실시한 결과, 직립이며 총체수량성이 높고 내습성이 강하여 총체 사료용 보리로서 우수성이 인정되어 "밀양111호"로 계통명을 부여하고 2000년부터 2002년까지 3년간 지역적응시험을 실시하였다. 그 결과, 수량성이 높고 습해 및 호위축병에 강한 계통으로 입증되어 2002년 9월 농작물 직무육성품종선정심의회에서 신품종으로 선정됨과 동시에 "영양"으로 명명하여 등록하고 농가에 보급하게 되었다. 1. 영양보리는 올보리에 비해 출수기는 2000년부터 2002년까지 3년동안 수원, 아산, 대전에서 평균 5월 1일로 올보리보다 4일 정도 늦었으며 성숙기는 수원에서 평균 6월 6일로 올보리 보다 1일정도 늦은 중만생종이다(표2, 3). 2. 영양보리는 초장은 83 cm로 올보리 보다 2 cm크며, $m^2$ 당 경수는 637개로 올보리에 비해 120개 적었으며, 엽신/줄기+엽신의 비율과 이삭/총체 비율은 올보리와 비슷한 하였다. 3. 내습성과 도복 정도는 올보리와 비슷하였으나 연천에서 실시한 내한성은 올보리 보다 약 하였으며 호위축병 저항성은 올보리 보다 강하고, 흰가루병 저항성은 올보리와 같았다. 4. 영양보리의 건물수량은 11.7톤/ha으로 올보리보다 18% 증수하였으며, 종실수량은 6.32톤/ha로 올보리 보다 5% 증수한 다수성이다. 5. 영양보리의 탈립율이 42%로 올보리에 비해 낮았고. 조단백질 함량, ADF, NDF는 올보리와 비슷하며, TDN비율은 올보리에 비하여 다소 낮고 사일레지 품질은 비슷하였다.

• 한국식품영양학회지
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• 제34권4호
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• pp.398-406
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• 2021

This study investigated on the nutritional components and physiological activity of four wild vegetables namely Salvia plebeia R. Br., Angelica acutiloba, Gynura procumbens and Saururus chinensis Baill for the development of representative wild vegetables in Chungbuk. Salvia plebeia possessed the highest radical scavenging activity and beta-carotene, but exhibited the lowest α-glucosidase inhibitory activity compared to the other three vegetables. Angelica acutiloba showed high crude protein content and α-glucosidase inhibitory activity, but contained low total polyphenol content, radical scavenging ability and beta-carotene compared to the other three vegetables. Gynura procumbens showed high mineral content, beta-carotene, vitamin K1 content and α-glucosidase inhibitory activity, but showed the lowest total polyphenol content and radical scavenging ability compared to the other three vegetables. Saururus chinensis showed high crude fiber content and total polyphenol content, but contained the lowest mineral and vitamin K1 content. To conclude, it is suggested to use Salvia plebeia or Saururus chinensis as antioxidant food materials and Angelica acutiloba and Gynura procumbens as food materials and sources of α-glucosidase inhibitors. In particular, it is believed that Saururus chinensis, which possessed high content of crude fiber, is suitable for low-calorie food materials such as diet products.

• 한국식품영양과학회지
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• 제27권6호
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• pp.1197-1203
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• 1998

This study was conducted to investigate serum lipids and antioxidant vitamins status of male patients with cerebrovascular disease. The study consisted of 16 hospital patients(57.8$\pm$13.7 years) at 3 General Hospitals in Taegu who suffer from cerebrovascular disease and 21 healthy adults(55.5$\pm$7.2 years). The results were as follows: The systolic blood pressure of the patients(150.0$\pm$13.7mmHg) was sig nificantly higher than healthy control(126.0$\pm$17.4mmHg). In patients the percentages of drinking alcohol(more than 5 times/week) and smoking were also higher. And the patients had more stress than control. Total calorie, protein, carbohydrate, vitamin B1 and niacin intakes were significantly lower in the patients. The energy nutrients consumption reached the recommended level in all subjects who were investigated. HDL cholesterol(24.99 vs 37.86mg/dl) and vitamin E(12.94 vs 20.88mg/L) level showed significantly lower, but triglyceride level(175.50 vs 117.69mg/dl), total cholesterol/HDL cho lesterol(6.22 vs 4.39) and atherogenic index(5.22 vs 3.39) were significantly higher in the patient group. Therefore, it might be expected that refraining from drinking alcohol and smoking, and that having proper exercise and certain other healthy living habits which can decrease stress in addition suitable consumption of antioxidant vitamins can prevent the occurrence of cerebrovascular disease.

• 한국식품영양과학회지
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• 제29권2호
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• pp.349-355
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• 2000

Onion was extracted by methyl alcohol and some physiological activities and antioxidative effect of the extracts on soybean oil, corn oil, lard and shortening were compared with commercial antioxidants such as $\alpha$-tocopherol and BHT. The electron donating ability was about 70% at concentration above of 30mg/mL. Nitrite scavenging effects of all concentrations diminished at higher pH, while in the case of pH 1.2, it showed a nitrite scavenging effect of more than 80% af concentration above of 30mg/mL. And also, the angiotensin I-converting enzyme inhibitory effect was good above 80%. The soybean oil, corn oil, lard and shortening containing different levels of the onion extract were stored at 6$0^{\circ}C$ to evaluate the antioxidative activity of onion extracts. Peroxide value, acid value and TBA value of each oil were detected. Onion extract was very effective to retard oxidation of soybean oil, corn oil and lard, and especially, the very high antioxidative effect was observed for lard.

• 한국식품영양학회지
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• 제35권5호
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• pp.359-368
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• 2022

In this study, the quality characteristics of kimchi, such as its salinity, pH, and acidity, were measured and compared, and the HT-29 human colon cancer cells were used to show the anticancer effects of kimchi. The kimchi samples used herein included standard kimchi (SK), turnip kimchi (TK), and turnip-powder-added kimchi (TPK). The measured pH and acidity of TK and TPK showed no significant differences with those of SK. Compared to SK and TK, TPK had higher DPPH scavenging activity and higher total flavonoid content, confirming its antioxidant activity. The cancer cell growth inhibition rates of TK and TPK were significantly higher than that of SK. In HT-29 cells treated with TPK, the mRNA expression of Bcl-xL, an anti-apoptosis-related gene, was lower, and the mRNA expressions of the apoptosis-related genes Bax, Bad, and caspase-9 were higher. TPK showed significantly higher levels of mRNA expressions for the cell-cycle-related genes p53 and p21 than the other samples, in addition to suppression effects on cancer cell proliferation. Compared to SK, TK and TPK suppressed the growth of colon cancer cells and showed higher anticancer effects. Therefore, it is shown that kimchi with added turnip powder had high anticancer effects.

• 한국식품영양과학회지
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• 제4권1호
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• pp.13-17
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• 1975

(1) 보육원경영주(保育園經營主)는 원아(園兒)들의 체력(體力)이나 건강면(健康面)을 고려(考慮)해서 영양관리(營養管理)에 유기적변화(劉期的變化)를 가(加)해야 하며 행정당국(行政當局)도 양적(量的)인 보육원경영(保育園經營)을 지양(止揚)하고 물적면(質的面)에 치중(置重)해야 할 것으로 생각된다. 외원(外援)이나 내자지원(內資支援)을 받는 보육원(保育園)이 합리적(合理的)으로 운영(運營)의 묘(妙)를 기(期)한다면 체육중학수준(體育中學水準)에는 미급(未及)일망정 일반가정아(一般家庭兒)의 생활수준(生活水準)을 오히려 능가할 수도 있을 것으로 예측한다. (2) 체육중학교생(體育中學校生)의 1 일(日) 평균(平均) Cal 섭취량(攝取量)은 연령(年齡)(체중(體重))과 운동량(運動量)에 비(比)하여 과식(過食)을 하는 형편(形便)이 아닌가 우려(憂慮)된다. 따라서 영양사(營養士)에게는 영양(營養)의 공급량(供給量)에 대(對)하여 새로운 검토(檢討)가 요망(要望)된다. (3) 기생충감염여부(寄生蟲感染如否)는 고려(考慮)하지 않았다. 그것은 체육중학교(體育中學校)에서 일정(一定)한 식단(食單)(menu)으로 생활(生活)($1{\sim}2$년(年))이 계속(繼續)되는 학생(學生)들의 Hb 량(量)이 많기 때문에 Hb량(量)이 적은 것은 기생충(寄生蟲)과는 무관(無關)하고 오직 영양물질(營養物質)에 기인(基因)한다고 예측(豫測)되기 때문이다. 더우기 어린 학생(學生)이면서 상류생활권(上流生活圈)에 속(屬)하는 리화여대(梨花女大)의 대학생(大學生)들과 같은 수준의 Hb 양(量)을 보지(保持)하므로 더욱 그 신빙도(信憑度)가 높다고 보아도 좋을 것이다. 따라서 일반가정아(一般家庭兒)와 원아(園兒)들의 건강상태(健康狀態)를 정상적(正常的)으로 유지(維持)시키면서 국력(國力)을 증강(增强)시키려면 보육원경영주(保育園經營主)나 한 가정의 책임자(責任者)는 오직 영양관리(營養管理)에 세심(細心)한 주의(注意)를 가져야 하고 행정당국(行政當局)도 보육원운영면(保育園運營面)에 보다 깊은 배려(配慮)가 있어야 한다고 요망(要望)된다.

• 한국식품영양과학회지
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• 제14권1호
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• pp.27-32
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• 1985

화분립이 alcohol대사에 미치는 영향을 알기 위하여 아미노산을 분석하고, rat에 alcohol과 화분립을 각각 농도별로 투여하여 rat 간(肝) alcoholdehydrogenase (ADH)활성과 간(肝)조직 변화를 실험하였다. 1. 해바라기 화분립의 아미노산 조성을 분석하여 phenylalanine을 비롯한 18종의 아미노산을 정량하였으며, 필수 아미노산중 특히 phenylalanine, leucine, threonine, lysine의 함량이 많았다. 2. 실험동물의 간(肝) ADH활성은 alcohol 투여군이 alcohol농도에 비례하여 대조군 보다 현저히 저하하였으며, 화분립을 alcohol과 함께 투여함으로써, 대조군에는 미치지 않았지만 ADH활성이 증가하였고, alcohol의 농도가 낮을수록 그 증가율이 높았다. 3. 실험동물의 간(肝)조직은 alcohol투여군에서 지방침윤이 나타났으며, 화분립과 alcohol 복합투여군에서는 지방침윤이 현저히 적게 나타났다.