참깨는 건전 유기 종자생산을 위해서는 Corynespora cassicola 등과 같은 종자전염 병원균의 감염을 최소화해 야 하므로 비가림하우스 내에서의 종자생산이 필수적이다. 그러나 비가림하우스 재배 시 진딧물의 대발생으로 참깨의 생산량 저하 되므로 본 연구에서는 참깨 비가림하우스 내 유기 재배 시, 진딧물에 대한 효과적인 유기농업 자재를 선발하고자 한다. 등록된 유기농업자재 8종 중 4종을 기내에서 선발하였으며 선발된 유기농업자재 4종을 참깨 재배기간 중 주 1회 처리한 결과, 처리 간 유의한 차이가 나타났다. 수확기인 8월 3일 기준 무처리구 대비 데리스추출물 70%와 데리스 20%+시트로넬라 30%+계피추출물 10%은 12.3%, 9.0%만이 고사하여 우수한 방제 효과를 나타냈다. 본 연구 결과는 참깨 재배 시 농림현장에서 발생하는 복숭아혹진딧물에 대한 유기농업자재 효과를 검정함으로써 유기재배 농가의 자재 선택에 대한 정보를 제공하고자 한다

This paper elucidates the novel direction of food research in the era of the 4th Industrial Revolution characterized by personalized approaches. Since conventional approaches for identifying novel food materials for health benefits are expensive and time-consuming, there is a need to shift towards AI-based approaches which offer more efficient and costeffective methods, thus accelerating progress in the field of food science. However, relevant research papers in this field present several challenges such as regional and ethnic differences and lack of standardized data. To tackle this problem, our study proposes to address the issues by acquiring and normalizing food and biological big data. In addition, the paper demonstrates the association between heath status and biological big data such as metabolome, epigenome, and microbiome for personalized healthcare. Through the integration of food-health-bio data with AI technologies, we propose solutions for personalized healthcare that are both effective and validated.

This study investigated the nutritional compositions and physiochemical properties of three domestically cultivated jujube fruits (Boeun, Sangwhang, and Bokjo). Nutrient contents were analyzed by freeze-drying the jujube fruits. The results showed that the proximate compositions of the three jujube cultivars ranged from 7.85~13.52% for moisture, 4.65~5.24% for crude protein, 1.29~2.38% for crude ash, 0.17~1.09% for crude lipid, and 7.66~16.63% for crude fiber. The above proximate contents of jujube cultivars were significantly different. Mineral contents of Al, Fe, Mg, Ca, Na, and K in the three jujube fruits were also determined. Mn, Cu and Zn were not detected in any of the varieties. The content of Al was higher in Sangwhang, while Boeun had higher contents of Ca and K. The total polyphenol, ABTS values, and hypoglycemic effect were slightly higher in Boeun as compared to the other varieties. Taken together, Boeun could be an important source of natural antioxidant as a functional food.

This study investigates the quality characteristics of sweet persimmon jam added with aronia juice. Sweet persimmon jam was prepared with sweet persimmon, sugar, pectin and various amounts (20, 40, 60, 80%) of aronia juice, and it was assessed for pH, total acidity, color, sensory evaluation and hydrogen donating ability on 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging effects and content of the total polyphenols, respectively. Increasing the amount of aronia juice decreased the pH, whereas the total acidity gradually increased. In addition, with an increased amount of aronia juice, the lightness (L) and yellowness (b) significantly decreased, while redness (a) gradually increased. By increasing the amount of aronia juice, the polyphenol contents, DPPH and ABTS radical scavenging activities were increased. The results of the sensory evaluation showed that the sweet persimmon jam added with 80% aronia juice had the highest overall-acceptability scores. The results suggest enhancing the quality, palatability and acceptability of sweet persimmon jam by adding 60~80% of aronia juice.

Vitamin K (phylloquinone) is an essential cofactor in the synthesis of active blood-clotting factors II, VII, IX and X. Deficiency of vitamin K leads to inadequate activity of these factors, resulting in bleeding. In this study, we investigated vitamin K1 content of agricultural products that are widely and specifically grown in Korea including 9 leaves and vegetables, 16 fruits, and 11 cereals and specialty crops. Vitamin K1 analysis of the agro-samples was by a validated, modified, reversed phase-HPLC method with fluorescence detection after post-column derivatization. The vitamin K1 content ranged from 1.83 to 682.73 μg/100 g in leaves and vegetables, 0.17 to 28.22 μg/100 g in fruits, and ND to 279 μg/100 g in cereals and specialty crops. Among the 36 samples, high content of vitamin K1 were found in Gugija (Lycium chinense Miller) leaves (average 682.73 μg/100 g) and Hansan ramie leaves (average 423.12 μg/100 g); however, mushroom, amaranth and Chinese artichoke showed no detectable levels. The results of ourstudy provide reliable vitamin K1 content of Korean grown agricultural products that expand nutritional information and food composition database.

The nutritional compositions and physicochemical properties of two aronia varieties (Viking and Nero) cultivated in Chungbuk were investigated. The proximate compositions of Nero and Viking powder were:13% moisture, 0.58% and 0.6% ash, 0.73% and 0.33% crude lipid, 5.47% and 6.51% crude protein, 15.65% and 16.15% crude dietary fiber, and 64.36 and 64.43% crude carbohydrate, respectively. The proximate contents of the aronia samples were not significantly different. Among the physicochemical properties, there was also no significant change in total anthocyanin and antioxidant activity. However, Viking had higher total polyphenol contents and α-glucosidase inhibition activity than Nero. The mineral contents of Al, Fe, Mn, Mg, Ca, Na, K, Cu and Zn in the two aronias were determined. Cu and Zn were not detected in both varieties. With regard to Al, Na and K, Nero was higher than Viking, while Ca was higher in Viking than Nero. From the results, Viking could be suggested to be beneficial for food processing.

Mulberry (oddi) is one of the most popular functional foods with many physiological components. This study investigated and compared the nutritional compositions and physiological activities of four mulberry fruits from Morus albo L. including Cheongilppong, Iksuppong, Suwonppong and Cheongsuppong (a new cultivar from Chungcheongbuk-do). To analyze the nutrient contents, mulberry fruits were freeze-dried. The results showed that the proximate compositions of the four mulberry cultivars ranged from 9.61~14.11% for moisture, 8.28~11.90% for crude protein, 3.70~4.86% for crude ash, 4.28~5.54% for crude lipid and 7.46~10.78% for crude fiber. The above proximate contents of mulberry cultivars were not significantly different. However, Cheongsuppong had the highest content of reducing sugar, 74.7%. Chungsuppong and Iksuppong showed higher contents of total polyphenol and anthocyanin than other mulberry cultivars, while all mulberry cultivars showed high antioxidant activities. Hypoglycemic effect had a slightly higher level in Suwonppong and Cheongsuppong than in the other samples. Taken together, the new cultivar “Cheongsu” oddi can be suggested as a potential source of functional food.

2013년 하계기간 중 우리나라의 서울, 충남, 전북 지역 등지에서 유충이 두충(Eucommia ulmoides Oliv.)의 잎을 가해하며 심각한 피해를 발 생시키는 새로운 해충을 채집하여 사육한 후 우화한 성충을 분류동정 한 결과 두충밤나방(신칭) (Protegira songi Chen & Zhang)으로 확인되어 보 고한다. 또한 본 연구를 통해 상기종의 기주식물이 우리나라에서는 처음으로 확인된다. 아울러 본 종에 대한 발생 및 피해상황과 분류학적 특징을 기재함과 동시에 암수생식기의 특징을 도해하여 제시하였다.

As a result of investigation on the larvae attacking leaves of Eucommia ulmoides Oliv. and causing serious damage on the plant in Seoul, Chungnam and Jeonbuk Province in Korea during summer in 2013, Protegira songi Chen & Zhang of the family Noctuidae was identified. In this study, we report the host plants of it for the first time from Korea, with larval damage and taxonomic information by illustrating the characteristics of male and female genitalia. Also we will conduct to extract and analyse the DNA barcode for correct identification in forest pest monitoring in near future.

본 연구는 유기액비 재료가 유기액비 제조시 화학적 특성 변화에 미치는 영향을 구명코자 충청북도농업기술원 플라스틱하우스에서 수행하였다. 계분, 대두박, 쌀겨 등 3처리를 하였다. 본 시험에서 얻어진 결과를 다음과 같이 요약할 수 있다. 액비 원료의 총 질소 함량은 대두박이 55 mg·kg−1으로 가장많았으며, 인산과 칼륨 함량은 계분에서 가장 많았다. 계분의pH는 중성에 가까웠으며, 대두박과 쌀겨는 강산성을 띠었다. 계분 액비의 EC는 발효기간이 증가할수록 증가하였고, 대두박과 쌀겨 액비는 발효기간 중 증가하다가 감소, 증가하는 경향이었다. 계분 액비의 황화수소 발생량은 발효 후 2주차에는3,200 mg·L−1이었으나, 발효 12주차에는 1,600 mg·L−1으로 감소하였고, 대두박과 쌀겨 액비는 발효 과정중 황화수소 가스가 발생하지 않았거나 거의 발생하지 않았다. 질소와 칼슘 함량은 계분 액비와 대두박 액비에서 가장 많았다. 인산, 마그네슘의 함량은 쌀겨 액비에서 각각 5.6 g·kg−1, 1.5 g·kg−1으로 가장 높았다. 칼륨은 처리에 따라 4.3-4.4g·kg-1으로 차이가 없었다.

This study evaluated the potential of utilizing the osmotic solution from dried mango processing as alternative raw material for mango wine making. Fermentation was carried out using two kinds of yeast strains Saccharomyces bayanus, Lalvin EC-1118 and Saccharomyces cerevisiae, Lalvin D-47 at 20oC for 28 days. Physicochemical analysis during fermentation was performed for each treatment and the resulting wine samples were analyzed for color, volatiles and sensory properties. Results of physicochemical analysis between the two fermenting samples as well as the wine samples show almost similar results regardless of the yeast strains. Wine color of sample wines after storage were not significantly different at p<0.05 and when compared with a commercial mango wine. From the volatile analysis, esters and alcohols constituted majority of the compounds. Production of several esters, alcohols, acids and terpenes were affected by yeast strain used in fermentation. Results of sensory analysis showed that wines fermented by S. bayanus EC-1118 strain was more acceptable although sensory scores between the treatments and the reference wine showed significant differences in all the attributes evaluated, except for bitterness. The utilization of osmotic solution from dried mango process could produce similar properties with existing commercial mango wines although there is still need for further work on the improvement of some sensory attributes of the mango wines.

Oxidative DNA damage negatively affects humans and the research is currently ongoing to find ways to reduce oxidative stress. Oxidative stress has been identified as a key factor in triggering various diseases. Thus, its alleviation is important for human health. Broussonetia kazinoki (B. kazinoki) has been used in traditional Korean medicine as a dermatological therapy to treat burns, pruritus, and acne. B. kazinoki is generally segregated into peeled root (PR), root bark (RB), peeled stem (PS), and stem bark (SB). To assess these components for their antioxidant activity and protection against DNA damage, their ethyl acetate fractions were examined by 1,1-diphenyl-2-picryl hydrazyl (DPPH) and 2,2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging assay. As a result of confirming the expression of factors involved in attenuating DNA damage, the protective effect of SB on oxidative stress suppressed the expression of p-p53 and γ-H2AX. Additionally, the levels of p53 and H2AX mRNA were significantly downregulated. In conclusion, these results indicated that the SB component of B. kazinoki had the potential to be used as an effective natural antioxidant compared to the other parts of the plant.

The pathological condition of excessive melanogenesis causing freckles, melasma, senile lentigo, pigmented acne scars, and cancer has a critical impact on the wellness of individuals. The mechanism of melanogenesis is related to the expression of melanogenic enzymes. Here, we evaluated the inhibitory effect of pine cone (Pinus densiflora) extracts on melanogenesis. P. densiflora, the Korean Red Pine, is the predominant tree species in the cool, temperate forests of northeast Asia, occurring in pure stands across Korea, Japan, and parts of northern China and Russia. P. densiflora leaves, pollen, and bark have been widely used for traditional medicine, or edible purposes. However, pine cones are rarely used as natural raw materials, although they contain many bioactive phytochemicals. The pine cone ethyl acetate fraction (PEF) showed no toxicity to B16F10 cells at a concentration of less than 100 ㎍/mL. PEF inhibited the expression of microphthalmiaassociated transcription factor (MITF), tyrosinase and tyrosinase-related factors in B16F10 cells treated with 3-Isobutyl- 1-methylxanthine (IBMX). These results suggest that pine cones can be used as an effective natural melanogenesis inhibitory agent.

In this study, we evaluated the whitening activity of prethanol A and water extracts from Abeliophyllum distichum Nakai. The extracts were prepared using 0, 50, 70, and 100% prethanol A at 121℃, 1.2 atm for 15 minutes. To confirm effective extraction, the acteoside content of each extract was analyzed with the HPLC-PDA method. The antioxidant activity was evaluated using DPPH and ABTS scavenging activity assays, and the whitening activity was evaluated based on inhibitory activities on the protein and mRNA expression of tyrosinase, tyrosinase-related protein 1 (TRP-1), tyrosinase-related protein 2 (TRP-2), and microphthalmia-associated transcription factor (MITF) in B16 F10 cells. Each extract showed strong antioxidant and whitening activity. IC50 values of antioxidant activity from each extract were in order of 100%, 70%, 50%, and 0%. In addition, whitening activity inhibited the protein and mRNA expression of melanin synthesis factor, following the same pattern as antioxidant activity. In conclusion, water and prethanol A extracts of A. distichum showed effective antioxidant and whitening activity and are thus considered to be valuable materials for whitening cosmetics. The results of this study will also provide basic data for the safe and efficient production of A. distichum as a cosmetic material.

This study aimed to investigate the various biological activities of Geranium thunbergii such as antimicrobial activity and protective effect against oxidative damage. To evaluate its antioxidant and antimicrobial activities, we first performed methanol extraction; this methanol extract was further partitioned using various solvents. And then, its antioxidant activity was measured using various assays including total phenolic content and protection against oxidative DNA damage, and antimicrobial activities were examined using minimum inhibiting concentration (MIC) test, and paper disc method. In addition, high-performance liquid chromatography was performed to analyze the major chemical components of ethyl acetate fraction. The G. thunbergii fraction with ethyl acetate exhibited higher antioxidant and antimicrobial activities than the other fractions. The results showed that G. thunbergii ethyl acetate fraction at 50 μg/mL had strong DPPH and ABTS radical scavenging activities of 80.88% and 80.12%, respectively. In addition, the ethyl acetate fraction protected DNA from the oxidative damage induced by ferrous ion and hydroxyl radicals and showed high antimicrobial activity with diameter of inhibition zones ranging from 13.33 to 15.67 mm. High-performance liquid chromatography analysis revealed the major phenolic compounds of G. thunbergii to be ellagic acid and gallic acid. These results suggest that G. thunbergii might protect DNA against oxidative stress induced by reactive oxygen species and can be utilized as a natural source of antioxidant and antimicrobial agent in the food industry.