「서동마」의 소비자 인지도 분석

유찬주 ( Chan Ju Yu ),송춘호 ( Chun Ho Song ),장동헌 ( Dong Heon Jang ) 한국식품유통학회 2013 食品流通硏究 Vol.30 No.3

This study analyzes awareness, product preference and choice criteria of yam to provide basic data for reinforcement of Seo-dong Yam`s marketing activities. First of all, the research result demonstrates high awareness of yam whereas Seo-dong Yam`s awareness is comparably lower than the nationwide level. Second, consumers have a high level of yam and yam-product purchase experience. However, the result also shows that it is necessary to develop more various yam-products. Third, older age groups show a higher level of interest in health food. Fourth, the choice criteria for health food are quality, a country of origin and price in order. Main implications are as following. First, it is compulsory to reinforce a promotion of Seo-dong Yam and increase a supply of processed products for raw yam consumption along with high quality raw yam production. Second, it is required to develop processed yam products and various products targeting the young generation. Third, yam breeding is needed for quality improvement and an establishment of stable production. Fourth, continued research on the yam production is indispensable to dominate the market in advance. Furthermore, a strategy that improves consumers` brand loyalty should be continuously developed.

둥근마·단마의 괴경비대 및 성분특성

장광진,박병재,박종인,박주현,김선림,박철호,Chang, Kwang Jin,Park, Byoung Jae,Park, Jong In,Park, Ju Hyun,Kim, Sun Lim,Park, Cheol Ho 국립한국농수산대학교 교육개발센터 2004 현장농업연구지 = Journal of practical agricultural resear Vol.6 No.1

Tuber yield and content of general component and diosgenin which is a main bioactive property were investigated in order to determine the growth characteristics of round typed yam(Dioscorea opposita L.) and the potential of artificial culture at Suwon, Korea. Tubers of round yam was initiated to form at 60 days after planting and then enlargement of tubers lasted by 160 days after planting. Compared to short typed yam(108g), tuber weight of round yam was higher(127g) on the basis of dry weight at 200 days after planting. In comparison of general component between round yam and short yam, protein of round yam(3.62%) was higher than short yam(2.10%). Water content in round yam(64.5%) was lower in short yam(79.4%), indicating a higher dry weight ratio of round yam. Hardness of round yam was 2787.6 while short yam showed about two times higher hardness(4946.9). Lightness was higher in round yam(77.4). In tuber extracts analysis, diosgenin content was respectively 3.32% in round yam and 2.61% in short yam.

둥근마(Dioscorea opposita Thunb.)의 괴경비대 및 성분특성

장광진,박병재,박주현,김선림,박철호 한국자원식물학회 2005 한국자원식물학회지 Vol.18 No.1

둥근마(Dioscorea opposita L.) 계통 중 품질이 우수하고 이용 가치가 기대되는 단파마를 우리나라에서 재배 시 그 가능성과 제 기관의 생육특성을 밝히기 위하여 실시하였다. 두 D. opposita의 괴경의 수량성 및 성분특성을 비교하여 재배 가능성을 시험하였다. 둥근마의 괴경형성은 정식 60일 정도에서 일어나, 그 후 지속적으로 비대생장이 일어나 160일까지 비대한 후 등숙하였다. 200일째 단마의 괴경중이 512g으로 둥근마 498g보다 약간 높았으나 건물중은 108/127g으로 둥근마가 높아 모양과 건물중이 우수하였다. 둥근마의 일반성분을 측정한 결과 단백질 함량에서 단마(2.10%)보다 3.62%로 높았으며 섬유, 지방의 함량이 낮았다. 수분함량은 64.53%로 단마(79.38%)보다 건물량이 높았다. 둥근마의 경도를 보면 2787.6로 단마의 4946.9 보다 약 2배정도 낮고, 색도 중 명도(L)는 둥근마가 77.37으로 단마보다 높았다. 둥근마의 괴경으로부터 추출한 물질은 diosgenin 의 표준물질과 일치하는 피크를 얻었으며, retention time은 약 5.9에서 나타났다. 둥근마의 괴경에서 diosgenin은 3.32%의 함량을 나타낸 반면 단마에서는 2.61%로 낮은 함량치를 나타냈다. Tuber yield and content of general component and diosgenin which is a main bioactiveproperty were investigated in order to determine the growth characteristics of round typedyam(Dioscorea oppositaL.) and the potential of artificial culture at Suwon, Korea. Tubers ofround yam were initiated to form at 60 days after planting and then enlargement of tuberslasted by 160 days after planting. Compared to short typed yam(108g), tuber weight ofround yam was higher(127g) on the basis of dry weight at 200 days after planting. Incomparison of general component between round yam and short yam, protein of roundyam(3.62%) was higher than short yam(2.10%). Water content in round yam(64.5%) waslower in short yam(79.4%), indicating a higher dry weight ratio of round yam. Hardness ofround yam was 2787.6 while short yam showed about two times higher hardness(4946.9).Lightness was higher in round yam(77.4). In tuber extracts analysis, diosgenin content wasrespectively 3.32% in round yam and 2.61% in short yam.

참마의 괴경과 영여자 추출물의 Phenolic Acids와 Flavonoids의 조성 및 피부미용 화장품 생리활성 검색

장아람 ( Ah Ram Jang ),이근광 ( Keun Kwang Lee ),김명곤 ( Myung Kon Kim ) 한국미용학회 2016 한국미용학회지 Vol.22 No.1

The purpose of this study was to investigate the phenolic compound compositions and skin care cosmetic physiological activities of Dioscorea japonica freeze drying yam‘s tuber, freeze drying and hot-air drying aerial bulbil extracts with MeOH solution. Total polyphenol content was higher in the yam tuber extract than aerial bulbil extract. Total flavonoid content of freeze-drying and hot airdrying aerial bulbil extract indicating higher than about 6.3 and 5.2 times content in the yam tuber extract, respectively. The major phenolic compounds of the yam tuber, freeze-drying and hot air-drying aerial bulbil extracts was p-hydroxybenzoic acid, sinapic acid and t-cinnamic acid respectively. Similarly, the flavonoids of the yam tuber, freeze-drying and hot air-drying aerial bulbil extracts were myricetin(6.02~7.43 mg%) and isorhamnetin(3.07~5.41 mg%), respectively. DPPH radical scavenging activity of freeze-drying and hot air-drying aerial bulbil extract was higher than yam tuber extracts. Tyrosinase inhibition activity of yam tuber extract indicating higher than about 32% and 22.35% freeze-drying and hot air-drying aerial bulbil extracts, respectively. The antimicrobial activities of freeze-drying yam tuber extract and hot-air drying aerial bulbil extracts was found that; E. coli KCCM 11234 and S. aureus KCCM 11593 cell growth was some inhibited at 1000 μg/ml concentration. Whereas, S. aureus KCCM 11593 cell growth was some inhibited by freeze-drying and hot-air drying aerial bulbil extracts. In addition, cytotoxicity for NIH3T3 cell line was not appeared by yam tuber, freeze drying and hot-air drying aerial bulbil extracts. These results indicated that D. japonica yam tuber and aerial bulbil extracts are functional and effective. In particular, they would be very useful as a health food and whitening cosmetic ingredients.

마 첨가 된장의 품질특성

전현일 ( Hyun Il Jun ),송근섭 ( Geun Seoup Song ) 전북대학교 농업과학기술연구소 2012 농업생명과학연구 Vol.43 No.2

The principal objective of this study was to analyze physicochemical characteristics and examine sensory evaluation of soybean paste (Doenjang) to which fresh yam and yam powder were added. Samples were prepared from Doenjang fermented for more than 6 months and examined for 80 days at 25℃. Fresh yam was added to 3%, 6% and 9%, and yam powder was added to 1%, 3% and 5%, respectively. Moisture and amino nitrogen contents were found to increase steadily during the fermentation time in all the samples. Amino nitrogen content of fresh yam-added, yam powder-added and the control Doenjang at 80 days was 529~535 mg%, 567~587 mg%, and 526 mg%, respectively. Soluble carbohydrate content was decreased greatly for the first 20 days and then retained constantly in all the samples. Bacteria count was very slightly increased during fermentation. Meanwhile, the highest yeast count was shown at 40 days of fermentation. In sensory evaluation, flavor of Doenjang did not have correlation with types of yam added. In regard to taste, 1% and 3% yam powder-added Doenjang were more preferred to the panel. In evaluation of overall acceptance, 3% yam powder-added Doenjang was most acceptable.

둥근마(Dioscorea opposita)의 지역적 적응성 및 수량성

장광진,박종인,박병재,김기선,박주현,박철호,Chang, Kwang Jin,Park, Jong-In,Park, Byoung Jae,Kim, Ki Sun,Park, Ju Hyun,Park, Cheol Ho 국립한국농수산대학교 교육개발센터 2005 현장농업연구지 = Journal of practical agricultural resear Vol.7 No.1

This study was done to determine the regional adaptability of Dioscorea opposita in Korea. Suwon, Chunchon, Kangneung, Yonchon and Taean had soil pH of 6.62, 5.65, 5.9, 5.9 and 5.82, respectively, being at more unfavorable conditions than a standard soil condition for yam with pH 6.2. The amounts of organic matter in Suwon, Chunchon, Taean, and Yonchon were 1.96%, 4.51%, 3.76%, 1.89% and 1.12%, respectively, being at more favorable conditions than a standard organic matter in soil for yam with 2.0~3.0%. As the results from cultivating of large plantings in different regions, Suwon showed the largest the tuber dry weight of 135g. In comparison of general component between round yam and short yam in the area of Kangneung, protein of round yam(3.30%) was higher than that of short yam(1.40%). Dryness in round yam(36.5%) was lower than that of short yam(28.9%), indicating a higher dry weight ratio of round yam. In tuber extracts analysis, saponins content was respectively 23.7mg/g in round yam and 10.4mg/g in short yam.

분말 마와 절편 마의 품질변화 비교에 관한 연구

고의석,심원철,김찬우,이학래,전규배,김재능 한국포장학회 2016 한국포장학회지 Vol.22 No.2

In this experiment, alcohol and blanching treatments were used for food packaging materials, quality of powder yam and sliced yams (5 mm size) were compared by alcohol concentration and time for measuring change of color, weight, moisture content saccharinity and decomposition. 5% and 10% alcohol were used to alcohol treatment for 5, 10 seconds each. Packaging materials were used OPP(30 μm), PET(25 μm), ON(25 μm) and all materials heat sealable were coated. Quality of powder yam were not changed during storage at low temperature however were changed during storage at room temperature after 5 days. In conclusion, powder yam were needed packaging materials with high water barrier property from moisture, sliced yams were high quality when packaged by ON and stored at low temperature. Therefore, using packaging materials with low oxygen permeability were expected to reduced quality degradation about browning of powder yam and sliced yams.

마분말을 첨가한 국수의 특성

정구민,권정숙 安東大學校 農業科學技術硏究所 1998 農業科學技術 硏究論文集 Vol.5 No.-

마첨가 국수의 개발을 위해 밀가루에 열풍건조마가루와 냉동건조마가루를 각각 2, 5, 10% 첨가하여 건국수를 만들고, 이들의 물리적 성질과 조리성질을 조사하였으며 관능검사를 실시하였다. 밀가루에 마가루를 첨가하면 국수의 폭은 0.5-4.8% 두께는 8.8-20.8% 줄어들었다. 국수의 색은 마가루의 갈변으로 다소 누렇게 변하였으며 첨가량이 클수록 심하였다. 마첨가로 국수의 강도와 휨성은 증가하였으며, 이에 따라 마국수는 밀가루 국수보다 취급이 용이할 것으로 생각된다. 국수의 조리 후 무게증가량과 조리부피는 마첨가량에 따라 별 차이를 보이지 않았으나, 조리손실은 마첨가 국수가 1.21-1.49g/25g으로 밀가루 국수의 1.15g/25g 보다 높았다. 이는 마의 수용성 식이섬유 함량(4.74-4.96%)이 밀가루(2.69%)보다 높기 때문일 것이다. 관능검사 결과, 마가루를 2-5% 첨가한 국수가 5.4-6.4점을 얻어 밀가루 국수의 5점보다 높았다. Dried noodles were prepared by blending wheat flour with 2, 5, 10% hot-air dried Chinese yam powder (HD) and freeze dried Chinese yam powder (FD), respectively. Adding yam powder decreased width and thickness of noodles by 0.5-4.8% and 8.8-20.8% respectively. Color of noodles were darkened with addition of yam powder due to probably enzymatic browning. Adding yam powder increased strength and flexibility of noodles. Weight gain and volume of noodle after cooking were not affected by adding yam powder, but cooking loss was increased from 1.15g/25g for wheat noodle to 1.21-1.47g/25g for yam-added noodles because yam powders contain more soluble dietary fiber(4.74-4.96%) than wheat flour(2.69%). In sensory evaluation, noodles added with 2-5% HD and FD scored 5.4-6.4 point whereas wheat flour noodle was 5.

Effects of Jamaican Bitter Yam (Dioscorea polygonoides) and Diosgenin on Blood and Fecal Cholesterol in Rats

Marsha-Lyn McKoy,Peta-Gaye Thomas,Helen Asemota,Felix Omoruyi,Oswald Simon 한국식품영양과학회 2014 Journal of medicinal food Vol.17 No.11

A sapogenin-rich preparation from Jamaican bitter yam (Dioscorea polygonoides) has been shown to reduce blood cholesterol concentrations in hypercholesterolemic rats and mice. Also, diosgenin supplementation has been reported to have antilipemic effects in several animal species. We investigated potential mechanisms of the lipid-lowering actions of bitter yam and also whether the actions were mediated by diosgenin. Sprague-Dawley rats were fed a hypercholesterolemic diet (4% cholesterol) alone or with 5% bitter yam or 1% diosgenin supplementation for 6 weeks. The control group was fed normal rat chow. The serum lipid profile, fecal cholesterol concentration, and serum lipase activity were assessed at the end of the period. The induction of hypercholesterolemia was inhibited by coadministration of 5% bitter yam or 1% diosgenin in the diet. Serum lipid profiles were similar in rats fed bitter yam or diosgenin. The fecal cholesterol concentration was significantly (P < .01) higher in rats fed diosgenin compared to the cholesterol group. However, there was no corresponding elevation in the group fed bitter yam. Administration of bitter yam or diosgenin supplement significantly increased (P < .01) the serum lipase activity compared to the normal control and cholesterol groups. The cholesterol-supplemented diet inhibited normal gain in body weight over the period. This action was potentiated by diosgenin. The effects of the respective supplements on body weight were not completely explained by food consumption. Supplementation of the diet with Jamaican bitter yam may be therapeutically beneficial in the management of hypercholesterolemia.

Lactic Acid Fermentation of Chinese Yam (Dioscorea batatas Decne) Flour and Its Pharmacological Effect on Gastrointestinal Function in Rat Model

Shin, Kyung-Ok,Jeon, Jeong-Ryae,Lee, Ji-Seon,Kim, Jong-Yeon,Lee, Chu-Hee,Kim, Soon-Dong,Yu, Yeon-Su,Nam, Doo-Hyun The Korean Society for Biotechnology and Bioengine 2006 Biotechnology and Bioprocess Engineering Vol.11 No.3

To develop a health-aid preparation of Chinese yam (Dioscorea batatas Decne), lactic acid fermentation was attempted using a mixed starter comprising of Lactobacillus acidophilus, Streptococcus thermophilus, and Bifidobacterium bifidus. The anaerobic fermentation of a 5% Chinese yam flour suspension gave a uniform suspension of pH 4.35, containing $7.76{\times}10^6 CFU/mL$ lactic acid bacteria (LAB), and which was found to be acceptable to the panel from a sensory assessment. During the administration of the lactic acid fermented (LAF) Chinese yam to Sprague Dawley rats for 6 weeks, a smaller body weight gain, but greater excretion of feces were observed, implying the creation of a healthy gastrointestine on the administration of LAF Chinese yam, which was also confirmed by the gastrointestinal motility of the feed in rats fed on LAF Chinese yam. The constipation induced by loperamide was further suppressed in a rat group fed on a LAF Chinese yam diet, which was qualified from healthy gastrointestinal flora established by LAB. A serochemical analysis revealed a slight improvement in the blood glucose, neutral lipid and total cholesterol concentrations on administration of LAF Chinese yam, suggesting LAF Chinese yam could be served as a healthy-aid preparation, even for hyperglycemia or hyperlipidemia patients.