• Title/Summary/Keyword: Wild vegetables

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Improvement of the Quality of Dried Wild Vegetables by Micro Oil Sprayed Thermal Air Technique

  • Yonghyun Kim;Yunmi Park;Chul-Woo Kim;Uk Lee;Hyun Ji Eo
    • Korean Journal of Plant Resources
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    • v.35 no.6
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    • pp.778-784
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    • 2022
  • Wild vegetables, such as Cirsium setidens, and Aster scaber, are commonly distributed as dried materials because the wild vegetables lose their freshness quickly after harvest and distribution. Dried wild vegetables require rehydration to use as a food ingredient, and the quality of rehydrated wild vegetables is affected by pre-drying and drying methods. Here, we introduce the newly developed pre-drying and drying method, termed "micro oil sprayed thermal air (MOTA) technique". The three wild vegetables processed by the MOTA technique showed improved rehydration rate and reduced time to achieve maximum rehydration rate. Color characteristics were also improved in C. setidens. These results indicate that the MOTA technique improves the overall quality of rehydrated wild vegetables. It is expected that our findings could enhance the marketability of dried wild vegetables by improving overall quality and reducing preparation time.

A Survey on Availability of Wild Vegetables (야생 나물의 이용실태조사)

  • 황은희
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.20 no.5
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    • pp.440-446
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    • 1991
  • A survey on the availability of wild vegetables was investigated using questionaire of 421 women. It includes the number of known vegetables and using, eating site, using status, taste and estimated components. The well known vegetables were 24 kinds and the half of the respondents knew 16 kind of vegetables. Age was statistically correlated with knowing degree, obtaining method of wild vegetables. Education level was correlated with knowing and using degree, obtaining method, preference and expectation of using wild vegetables. Resident area also correlated with using degree, obtaining method, preference and taste of wild vegetables. The age and using degree, preference and preference and expectation, the resident area and knowing degree of wild vegetables were not correlated.

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An Analysis of Consumer Preference and Demand for Wild Vegetables: Through a Consumer Preference Survey and Social Big Data Analysis (산채(산나물)에 대한 소비자 의향 및 수요 분석: 소비자 의향 조사와 소셜 빅데이터 분석을 통하여)

  • Byun, Seung-yeon;Seok, Hyun Deok
    • Journal of Korean Society of Forest Science
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    • v.108 no.1
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    • pp.116-126
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    • 2019
  • The production volume and amount of non-timber forest products in Korea has been on the increase for the past five years. In particular, the production amount of wild vegetables (edible mountain plants) is approximately KRW 400 billion as of 2017, accounting for 14 % of the total production amount of non-timber forest products. Among wild vegetables, especially the production volumes and amounts of bracken, saw-wort (Saussurea), and thistle have grown steadily. Nevertheless, severe price competition with cheap imports and little changes in the pattern of wild vegetable consumption may negatively affect the prices of domestic wild vegetables. This, in turn, can decrease the overall consumption of wild vegetables. Recently, however, consumers have preferred healthy food with increases in their income and interest in health. Therefore, now is a crucial time for the wild vegetable market. Accordingly, this study analyzed consumers' purchase and consumption behavior related to wild vegetables through a consumer survey to contribute to establishing various strategies and policies for promoting the consumption of these vegetables. Also, this study identified consumers' awareness and intention regarding wild vegetables by analyzing social big data. Different from previous studies, this study investigated consumers' awareness and intention by analyzing SNS social big data, as well as conducting a survey. The results of the study will help prioritize strategies and policies for boosting the consumption of wild vegetables.

A Historical Study on the Utilization of Wild Vegetables as Foods in Korea (한국산채류 이용의 역사적 고찰)

  • LeeKim, Mie-Soon
    • Journal of the Korean Society of Food Culture
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    • v.1 no.2
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    • pp.167-170
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    • 1986
  • The first historical record on the use of wild edible plants as foods in Korea involves sswuk and manul concerned with the mythology of Tangun. Numerous names of wild vegetables had been recorded in various ancient books. Wild edible plants are of great value as food resources and for domestication, since they have variable edible portions and quite a long picking season. Several kinds of wild edible plants have been already grown as vegetable crops. Doragi (Platycodon grandiflorum) is probably the one with the longest history of cultivation. During World War II, an attempt had been made to substitute vegetable crops for wild edible plants. As picking wild greens requires a great deal of labor and plants of wild growth are limited in the amount, domestication of wild vegetables as crops appears to be an urgent need for securing food resources in Korea.

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Antimicrobial Activity on Respiration Diseases Inducing Bacteria and Antioxidant Activity of Water Extracts from Wild Edible Vegetables (산채류 추출물의 항산화 활성 및 호흡기 질환을 유발하는 세균에 대한 항균활성)

  • Lee, In-Soon;Moon, Hae-Yeon
    • KSBB Journal
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    • v.27 no.2
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    • pp.114-120
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    • 2012
  • To investigate the antimicrobial activity on bacteria causing a respiration disease and antioxidant effects of water extracts from 12 kinds of wild edible vegetables, we extracted the water extracts for 72 h in $7^{\circ}C$ using distilled water as solvent. The water extracts except Ixeris dentate and Allium monanthum had high concentrations of phenol compounds and flavonoids. Liguraia fischeri specially had the highest level on total phenol compounds and flavonoids with 205 ${\mu}g/mL$ and 98. 86 ${\mu}g/mL$, respectively. The each 0.05% extracts of Sedum sarmentosum and Liguraia fischeri had high effect on the DPPH radical scavenging activity among wild edible vegetables and the most extracts promoted antioxidant activity with increasing concentration of extract. The catalase activity of Erysimum aurantiacum and Aralia elata showed more than 150 units per g of fresh tissue. The effect of antimicrobial activity on water extracts showed characteristic activity. Only Staphylococcus aureus KCTC 1928 and Corynebacterium diptheriae KCTC 3075 were inhibited cell growth on the other hands, the remainder of bacteria was not inhibited cell growth. Nevertheless, the extracts of wild edible vegetables had specific concentration as MIC for antimicrobial activity respectively. In case of the extract of Aster scaber, Erysimum aurantiacum, and Allium monanthum had over 30% antimicrobial activity on the bacteria causing a respiration disease. In results, the wild edible vegetables include high concentrations of total phenol compounds and flavonoids that give a good antioxidant activity and antimicrobial activity. Therefore the wild edible vegetables are functional food for anti-aging and physiological activation.

Evaluation of Antioxidant and Cognition Improvement Effects of 10 Wild Vegetables Cultivated in Gangwon Province (강원도 10종 산채류의 항산화 및 인지능력개선 효능 평가)

  • Han, Xionggao;Choi, Sun-Il;Kim, Min-Jong;Lee, Ok-Hwan
    • The Korean Journal of Food And Nutrition
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    • v.32 no.6
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    • pp.662-668
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    • 2019
  • The purpose of this study was to investigate effect of methanolic extracts of 10 kinds of wild vegetables cultivated in Gangwon province on antioxidant activity, acetylcholinesterase, and β-secretase inhibitory activities. Results showed that among the wild vegetables, Aralia elata(Miq.) Seem shoot extract exhibited the highest total phenol content (84.65±1.08 mg GAE/g) and total flavonoids content (70.77±0.55 mg RE/g), respectively. The antioxidant activity of wild vegetables extracts was measured by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay. Aralia elata(Miq.) Seem shoot extracts had the highest DPPH and ABTS scavenging activity (90.16%, 40.18% at 2 mg/mL). As a result, Aralia elata(Miq.) Seem shoot extract was the most effective in terms of acetylcholinesterase inhibitory activity (35.94% at 1 mg/mL). In the β-secretase activity assay, all 10 kinds wild vegetables extracts showed low inhibitory activity, and Aralia elata(Miq.) Seem shoot extract had highest inhibitory activity among the 10 wild vegetables extracts was 14.99%. Taken together, these results showed that Aralia elata(Miq.) Seem shoot extract has potential cognition improvement impact, suggesting that it may provide an effective strategy for improving cognition.

Dietary Fiber Contents and Physical Properties of Wild Vegetables (산채류의 식이섬유 함량과 물리적 특성)

  • 박종숙;이원종
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.1
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    • pp.120-124
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    • 1994
  • Nine wind vegetables were analyzed for moisture, ash, crude protein, crude lipid and dietary fiber. Wild vegetables contained 33-53% of dietary fiber on a dry weight basis. Dalle (Allium monanthum) contained 49% total dietary fiber and 22% soluble dietary fiber and dodok(Codonopsis lanceolata) contained 55% total dietary fiber and 21% soluble dietary fiber. Wild 8% more dietary fiber than cultivated one. Water holding capacities of wild vegetables were higher than commercial wheat bran and soy fiber, but lower in oil absorption. When wild dodok and dalle were wet milled by blade grinding before sieving the dietary fiber content in dodok was increased from 55 to 83 % with increasing the dietary fiber content in dalle form 49% to 69%.

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Comparison of Antithiamine Activities of Wild Vegetables (산채류의 Thiamine 분해능 비교)

  • Yoon, Jae-Young;Song, Mi-Ran;Lee, Su-Rae
    • Korean Journal of Food Science and Technology
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    • v.20 no.6
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    • pp.808-811
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    • 1988
  • Antithiamine activities of dried wild vegetables consumed in Korea were evaluated by means of the thiochrome fluorescence and Lactobacillus viridescens bioassay methods and compared with the phenolic content and the degree of browning of the samples. Eggplant, sweet Potato stalk, bracken, red pepper leaf, Aster scaber and mugwort had higher antithiamine activities than Codonopsis lanceolata, doraji, taro stalk, pumpkin, oak mushroom and acorn starch. Wild vegetables with high antithiamine activity tended to have a high phenolic content and degree of browning. It is recommended that wild vegetables should not be cooked with thiamine-rich foods and be eaten immediately after cooking in order to minimize the thiamine decomposition.

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Evaluation of the Antioxidant Contents of Korean Wild Leaf Vegetables

  • Ahn, Hee-Jung;Cho, Mun-Jung;Cho, Youn-Ok
    • Nutritional Sciences
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    • v.3 no.2
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    • pp.98-102
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    • 2000
  • The purpose of this study was to evaluate the antioxidative potential of Korean wild leaf vegetables. Antixoidative activity of chamchwi (Aster scaber), nurucchwi (Pleurospermum kamtschaticum) sumssukbujengee (Aster glheni), moshidae (Adenophora remotiflora), spinach (Spinacia oleracea)k was evaluated as a reference for commonly used synthetic antioxidant, BHA. We compared the content of $\beta$-carotene, vitamin C and vitamin E as antioxidant vitamins, and total phenolic compound including flavonoid as non-vitamin compounds in Korean wild leaf vegetables and spinach. Thiobarbituric acid (TBA) value of Pleurospermum kamtschaticum, Aster scaber and Adenophora remotiflor was only 18-20% of control. TBA value of Aster glheni was 40% of control. On the basis of moles, the high level of vitamin C is the major contributor to the total antioxidant vitamin contents of Pleurospermum kamschaticum and Adenophora remotiflor. The amounts of flavonoid as well as total phenolic compound in Pleurospermum kamtschaticum and Adenophora remotiflor were also much higher than those of spinach. The amounts of flavonoid as well as total phenolic compound in Aster glheni were much higher than those of spinach while total amount of antioxidant vitamins was significantly lower than that of spinach. These results suggest that Pleurospermum kamtschaticum and Adenophora remotiflor could have antioxidative potency in food. Because of the higher content of antioxidant vitamins in Pleurospermum kamtschaticum and Adenophora remotiflor, these Korean wild leaf vegetables may have preventive effects on degenerative diseases, which have been associated with free radical mediated events.

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Screening for Antioxidative and Antimutagenic Capacities in 7 Common Vegetables Taken by Korean

  • Oh, Se-In;Lee, Mee-Sook
    • Proceedings of the Korean Journal of Food and Nutrition Conference
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    • 2003.07a
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    • pp.77-77
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    • 2003
  • This study was performed to investigate the antioxidative effect as the inhibition of MDA and BSA conjugation reaction, inhibition of lipid peroxidation and the scavenging effect on DPPH radical, and antimutagenic capacities as the Ames test in 7 common vegetables taken by Korean for suggestion of prevention and dietetic treatment of chronic diseases and development of antioxidative and antimutagenic functional food. The water extracted fractions of perilla leaves were most effective in the inhibition of MDA and BSA conjugation reaction showing 77.2% of inhibition rate among 7 vegetables. The inhibition rates of ethanol extracted fractions of sedum and wild water dropwort on the lipid peroxidation were 67.1% and 61.5%, respectively. The ethanol extracted fractions of crown daisy and wild water dropwort showed the most effective results among 7 vegetables in the DPPH radical scavenging capacities showing inhibition rate of 78.8% and 73.6%, respectively. The indirect and direct antimutagenic effects of ethanol extract of 7 vegetables were examined by Ames test using Salmonella typimurium TA98 and TA100. Inhibitory effects of wild water dropwort was superior to the other vegetables on the Ames test. These results suggest that common 7 vegetables taken by Korean are believed to be a possible antioxidative and antimutagenic capacities, although the resultswere different, some or less, according to the assay method and vegetables used.

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