• Title/Summary/Keyword: tropical Asia

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Influence of Different Supplements on the Commercial Cultivation of Milky White Mushroom

  • Alam, Nuhu;Amin, Ruhul;Khair, Abul;Lee, Tae-Soo
    • Mycobiology
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    • v.38 no.3
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    • pp.184-188
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    • 2010
  • Calocybe indica, known as milky white mushroom, grows and cultivated in the sub-tropical and temperate zones of South Asia. We investigated the most suitable supplements and their levels for the commercial cultivation of milky white mushroom. Rice bran, maize powder, and wheat bran with their different levels (10, 20, 30, 40, and 50%) were used as supplements to evaluate the yield and yield contributing characteristics of C. indica. Primordia initiation was observed between 13.5 and 19.3 days. The results indicated that the 30% maize powder supplement was effective for producing viable fruiting bodies. The maximum diameters of the pileus and stalk were observed with 30% maize powder. The highest biological and economic yield and biological efficiency were also obtained with 30% maize powder as a supplement. The results indicate that increasing the supplement level resulted in less biological efficiency, and that 30% maize powder was the best supplement level for rice straw substrate to cultivate milky white mushrooms.

Phytochemical and pharmacological profiles of Dioscorea species in Korea, China and Japan (한국, 중국, 일본에서 자생하는 '마' 속 식물의 화학 성분과 활성)

  • Yang, Min-Hye;Yoon, Kee-Dong;Chin, Young-Won;Kim, Jin-Woong
    • Korean Journal of Pharmacognosy
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    • v.40 no.4
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    • pp.257-279
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    • 2009
  • Plants of genus Dioscorea have long been served as important carbohydrate-stuffed foods in the tropical and subtropical regions, and utilized as traditional herb medicines to enhance digestive function, improve anorexia, and treat diarrhea in oriental countries. It is known that around 600 species of Dioscorea are distributed in the world including 107 species in Asia, but actually utilized Dioscorea species are restricted to small numbers. Phytochemical investigations for Dioscorea species have revealed a number of chemical components such as sapogenins, saponins, phenanthrenes, stilbenes, diterpenes and purine derivatives. According to recent pharmacological studies, Dioscorea species possess significant antioxidant, antibacterial and anti-inflammatory activities as well as anticancer, antidiabetic, cholesterol-lowering and hypolipidemic effects. Here, seven Dioscorea species (D. batatas, D. japonica, D. bulbifera, D. opposita, D. tokoro, D. nipponica and D. alata), mainly distributed and used in Korea, China, and Japan, are reviewed to provide their botanical, phytochemical and pharmacological properties were described.

Impact of $CO_2$ Increase on East Asian Monsoon

  • Kripalani, R.H.;Oh, J.H.;Chaudhari, H.S.
    • The Korean Journal of Quaternary Research
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    • v.19 no.2
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    • pp.50-54
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    • 2005
  • Some basic summer precipitation features over East Asia during the $20^{th}-21^{st}$ century as simulated / projected by the 22 coupled climate models under the IPCC AR4 program are investigated. Keeping in view that these are climate runs without prescribed SSTs, models perform well in simulating the regional annual cycle, spatial patterns (not shown) and the inter-annual variability. The projections under the 1% increase in $CO_2$ compounded until reaching double and held constant thereafter reveal that (a) Precipitation is likely to increase in all the months in particular during the summer monsoon (JJA) months. (b) The mean summer monsoon rainfall can increase from 4.2 to 13.5% and its variability is also likely to increase in the warming world due to increase in $CO_2$ (c) Extreme excess and deficient seasonal monsoons are likely to become more intense (not shown here) (d) Once the increase in $CO_2$ is cut-off, the system will reach a state of equilibrium, and then the rate of increase in precipitation is also expected to remain constant.

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The impact of hair coat color on longevity of Holstein cows in the tropics

  • Lee, C.N.;Baek, K.S.;Parkhurst, A.
    • Journal of Animal Science and Technology
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    • v.58 no.12
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    • pp.41.1-41.7
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    • 2016
  • Background: Over two decades of observations in the field in South East Asia and Hawai'i suggest that majority of the commercial dairy herds are of black hair coat. Hence a simple study to determine the accuracy of the observation was conducted with two large dairy herds in Hawaii in the mid-1990s. Methods: A retrospective study on longevity of Holstein cattle in the tropics was conducted using DairyComp-305 lactation information coupled with phenotypic evaluation of hair coat color in two large dairy farms. Cows were classified into 3 groups: a) black (B, >90%); b) black/white (BW, 50:50) and c) white (W, >90%). Cows with other hair coat distribution were excluded from the study. In farm A, 211 out of 970 cows were identified having 4 or more lactations. In farm B, 690 out of 1,350 cows were identified with 2 or more lactations for the study. Results: The regression analyses and the Wilcoxon-Log-rank test for survival probability showed that Holstein cattle with 90% black hair coat had greater longevity compared to Holstein cattle with 90% white hair coat. Conclusions: This study suggests that longevity of Holstein cattle in tropical regions was influenced by hair coat color and characteristics.

Zingiber officinale Rosc.: A traditional herb with medicinal properties

  • Imtiyaz, Shaikh;Rahman, Khaleequr;Sultana, Arshiya;Tariq, Mohd;Chaudhary, Shahid Shah
    • CELLMED
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    • v.3 no.4
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    • pp.26.1-26.7
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    • 2013
  • Ginger (Zingiber officinale) belonging to the family Zingiberaceae is a perennial herb. It is widely distributed in tropical Asia. In India, it is cultivated mainly in Kerala, Andhia Pradesh, Uttar Pradesh, West Bengal and Maharashtra. It is one of the most common spices, which is in use since centuries for its versatile medicinal actions like antiemetic, stomachic, expectorant, anti-inflammatory, aphrodisiac etc in traditional system of medicine (Unani, Ayurveda, and Chinese medicine). It is useful for the treatment of various gastrointestinal, pulmonary, cardiovascular and sexual disorders. The phytochemical study of ginger showed the presence of many volatile oils and oleo-resins like gingerol, zinger one, zingiberol etc. Numerous experimental and clinical trials have proven ginger for its range of therapeutic activities such as antibacterial, antidiabetic, antiemetic, hypolipidaemic, hepatoprotective etc properties. The present article aims to explore traditional Unani and pharmacological activities of this herb reported till date.

New records of ferns in the flora of Myanmar found in Natma Taung National Park in the Chin State (미얀마 친주 나트마타웅 국립공원내 미얀마 미기록 양치류)

  • Nwe, Thet Yu;Moon, Myung-Ok;Hwang, In Chun;Lee, Seung-Hoon;Sun, Byung-Yun
    • Korean Journal of Plant Taxonomy
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    • v.46 no.3
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    • pp.283-287
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    • 2016
  • Field work conducted in Natma Taung National Park, Chin State, Myanmar, in 2015 to make a checklist of lycophytes and ferns resulted in the discovery of four fern species not previously recorded in the flora of Myanmar. All occur in other countries in southeastern Asia, and in other tropical areas. The species are as follows: Adiantum monochlamys (Adiantaceae), Ctenitis decurrentipinnata (Dryopteridaceae), Pteris tripartita, and Paragymnopteris vestita (Pteridaceae). These findings will enable us to update the checklist of ferns of Myanmar.

A Study on Heat Transfer of Plywood for Wood Based Flooring by Veneer Composition (마루판용 합판의 단판 구성요소에 따른 열전달 특성에 관한 연구)

  • Pi, Duck-Won;Choi, Song-Kyu;Kang, Ho-Yang;Kang, Seog-Goo
    • Journal of the Korea Furniture Society
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    • v.23 no.3
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    • pp.298-304
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    • 2012
  • Since 1990's, a flooring based on plywood has gotten customers' demand. Costs of raw material and production increased because of changed environment of industry. Tropical timber such as Red Meranti (Shorea acuminate) used for raw material of the floor has been depleting beside countries in South Eastern Asia changed species of afforestation. As a result, it gets hard to secure good quality of raw material for plywood. Moreover plywood price is increased suddenly after earthquake in Japan. Eucalyptus (Eucalyptus globulus) in china has been using for raw material as a countermeasure of changed environment of industry. In this study, possibility of using flooring consisted of Eucalyptus veneer as a core layer was checked by heat transfer experiments. Flooring consisted of Red Meranti was used for comparison. Two factors which impact on heat transfer are a type of density gradient and density difference between Long-grain veneer and Short-grain veneer. Red Meranti samples are 'M' type of density gradient on the other hand Eucalyptus samples are 'W' type of density gradient.

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Role of Curcuma longa, a traditional ayurvedic medicinal plant, in diabetes

  • Ponnusamy, Sudha;Zinjarde, Smita;Bhargava, Shobha;Kumara, Ameeta Ravi
    • CELLMED
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    • v.2 no.4
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    • pp.31.1-31.7
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    • 2012
  • Curcuma longa belongs to the family Zingiberaceae and can be found in the tropical and subtropical regions of the world. It is widely used in Asiatic countries, especially India and South East Asia where it is cultivated commercially as a condiment. Its rhizomes exhibit anti-inflammatory, anti-human immunodeficiency virus, anti-bacterial, antioxidant effects, nematocidal activities, antiproliferative and antiangiogenic activities and are of pharmaceutical importance. Another relevant medicinal property exhibited by it is antidiabetic property which is reviewed here. Studies on the efficacy of crude C.longa extracts against type 2 diabetes in murine models reveal that it demonstrates a hypoglycemic effect by lowering the blood glucose levels under in vivo conditions. Clinical studies have revealed the safety of curucmin (major principle component exhibiting pharmaceutical properties from C.longa) on humans but with very low bioavailability. In view of its effective hypoglycemic effect and its low bioavailability, further studies are needed for the characterization of the bioactive principles and formulating the development of C.longa extracts as a novel anti-diabetic therapeutic agent.

MicroRNAs May Serve as Emerging Molecular Biomarkers for Diagnosis and Prognostic Assessment or as Targets for Therapy in Gastric Cancer

  • Mu, Yong-Ping;Sun, Wen-Jie;Lu, Chuan-Wen;Su, Xiu-Lan
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.12
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    • pp.4813-4820
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    • 2015
  • Gastric cancer (GC) is one of the most common cancers, with high incidences in East Asia countries. Most GC patients have been reported with low early diagnosis rate and show extremely poor prognosis. Therefore, it is necessary to develop novel and more sensitive biomarkers to improve early diagnosis and therapy in order to provide longer survival and better quality of life for gastric cancer patients. MicroRNAs (miRNAs) play crucial roles in GC development and progression. miRNAs have emerged as a novel molecular biomarker for cancer diagnosis, prognosis and therapy with surprising stability in tissues, serum or other body fluids. This review summarizes major advances in our current knowledge about potential miRNA biomarkers for GC that have been reported in the past two years.

Sweet Basil (Ocimum basilicum): much more than a condiment

  • Barbalho, Sandra Maria;Machado, Flavia Maria Vasques Farinazzi;Rodrigues, Jaqueline Dos Santos;Silva, Tiago Henrique Pereira Da;Goulart, Ricardo De Alvares
    • CELLMED
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    • v.2 no.1
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    • pp.3.1-3.5
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    • 2012
  • Ocimum basilicum belongs to the family Lamiaceae and can be found in tropical Asia, Africa, Central America and South America. It is widely cultivated commercially as a condiment or for the production of essential oil. In this review, this plant is accredited with important effects on health, in addition to being a condiment. In folk medicine it is used to treat vomiting, intestinal colic and diarrhea, menstrual pains and to improve kidney function. Some studies have demonstrated that it can be used for the treatment of hyperlipidemia and also that it has antioxidant, neuroprotective, anti-inflammatory and vasodilator properties as well as hepatoprotective effects. In view of its broad range of effects, further studies should be conducted to ascertain the possible use of this plant in clinical trials, not only for prevention but also as an adjuvant in the treatment of different diseases.