• 제목/요약/키워드: edible ferns

검색결과 4건 처리시간 0.018초

Enumeration of edible and useful ferns (Pteridophytes) in the Bhutan Himalayas

  • Rinchen DORJI;Choki GYELTSHEN;PHUENTSHO PHUENTSHO;Karma Ugyen WANGMO;Kencho DORJI
    • 식물분류학회지
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    • 제52권4호
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    • pp.235-245
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    • 2022
  • Bhutan is endowed with rich biodiversity with several edible and useful fern species. Ferns have been used by local communities for centuries as vegetables, ethnobotanical artifacts, and as medicines. Owing to the limited study of edible and useful pteridophytes in the country, the knowledgebase remains poor. In this study, we attempt to document edible and useful fern species in the country scientifically while also providing an annotated checklist.

고사리 산업화를 위한 인공종자 개발 및 생산 (Synthetic Seed Development and Production for Industrialization of Eastern Bracken)

  • 장보국;조주성;이철희
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2021년도 춘계학술대회
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    • pp.11-11
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    • 2021
  • Ferns have been consumed as food in many countries for centuries. As rich sources of protein, fiber, minerals, vitamins, essential amino acids, and fatty acids, ferns provide important nutrients to humans. Eastern bracken (Pteridium aquilinum var. latiusculum (Desv.) Underw. ex A. Heller) is the most popular edible fern in South Korea where, additionally, it has long been used as an edible wild leaf vegetable. Recently, the production of eastern brackens in South Korea (2018) has reached 14,032 tons, for an annual revenue of 83.5 billion won, and even more eastern brackens are marketed if imports are taken into account as well. Most of the common ferns can be propagated using spores. However, fern farmers cultivate seedlings through traditional propagation methods, such as root pruning or rhizome division. These propagation methods exhibit limitations in forming roots and growing-points and are labor intensive. Quality seedlings of eastern bracken can be obtained through spore propagation, but the spores are fine and difficult to handle in the field. In addition, it would require appropriate environmental control. The production of synthetic seeds using encapsulation technology is easy to establish and it can be used to achieve high productivity at low cost. Synthetic seeds contain explants embedded into a seed foam, and they overcome the limitations of micropropagation and offer the possibility of using plug seedlings. Synthetic seed matrix, such as sodium alginate, has the advantages of low cost, low toxicity, and gel stability. The present study aimed to develop and produce synthetic seeds for the commercial exploitation of eastern bracken. Furthermore, we verified spore germination and the extent of gametophyte and sporophyte development achieved with our new synthetic seeds, whose production was intended to solve current problems with the handling, storage, and transportation of eastern bracken.

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식용 및 악용 양치식물에서 부위별 추출물의 항산화활성 탐색 (Screening for Antioxidative Activities of Extracts from Aerial and Underground Parts of Some Edible and Medicinal Ferns)

  • 정진아;권수현;이철희
    • 한국자원식물학회지
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    • 제20권2호
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    • pp.185-192
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    • 2007
  • 8종의 식용 및 약용 양치식물에서 80% 에탄올을 이용하여 부위별 추출물을 조제한 후 각각의 생리활성물질 및 항산화활성을 조사하였다. 총 폴리페놀 함량은 쇠고비의 근경에서 $57.32mg{\cdot}g^{-1}$로 가장 높았고, 그 다음은 쇠고비의 뿌리>석위 지상부>야산고비 지상부의 순으로 나타났다. 총 플라보노이드 함량은 야산고비의 지상부에서 $27.51mg{\cdot}g^{-1}$로 가장 높았고 야산고비 근경에서 $1.95mg{\cdot}g^{-1}$로 가장 낮았다. DPPH 및 ABTS 라디칼 소거능은 쇠고비의 뿌리 및 근경 추출물에서 가장 높게 조사되었다. 부처손 지하부와 고비 지상부를 제외한 모든 추출물에서 linoleic acid의 산화를 87% 이상 강하게 억제할 수 있는 것으로 확인되었다.