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How to Comprehensively Utilize the discarded Fresh Tobacco Leaf ?

Asian Agricultural Research 2015年第12期7卷 74-76页

作者： Xiqing LIU Weiping FENG Zhifu XU Dongyang HU Zairan DENG Wenyu LI Qidong County Branch of Hunan Tobacco Company Hengyang Branch of Hunan Tobacco Company

This paper aims to explore comprehensive utilization way of discarded fresh tobacco leaf. Based on modern tobacco demands on green,environmental protection and sustainable development,as well as actual situation of biogas production facility in some villages of local tobacco area,this paper selects Longwan Village of Fengshiyan Town as the experimental site and explores the rational way of discarded fresh tobacco leaf biogas fermentation. Results show that cutting and fermentation of discarded fresh tobacco leaf before adding into biogas digester is conductive to improving p H in fermentation process,reducing crust amount,and effectively improving biogas production amount and rate. The study can provide reference for effective processing and rational utilization of discarded fresh tobacco leaf.

关键词： discarded fresh tobacco leaf Biogas fermentation Comprehensive utilization

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Mesenchymal stromal cells from human perinatal tissues: From biology to cell therapy

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World Journal of Stem Cells 2010年第4期2卷 81-92页

作者： Karen Bieback Irena Brinkmann Institute of Transfusion Medicine and Immunology Medical Faculty Mannheim Heidelberg University DRK-Blutspendedienst Baden-Württemberg Hessen gGmbH Ludolf-Krehl-Str. 13-17 D-68167 Mannheim Germany

Cell-based regenerative medicine is of growing interest in biomedical research. The role of stem cells in this context is under intense scrutiny and may help to define principles of organ regeneration and develop innovative therapeutics for organ failure. Utilizing stem and progenitor cells for organ replacement has been conducted for many years when performing hematopoietic stem cell transplantation. Since the first successful transplantation of umbilical cord blood to treat hematological malignancies, non-hematopoietic stem and progenitor cell populations have recently been identified within umbilical cord blood and other perinatal and fetal tissues. A cell population entitled mesenchymal stromal cells (MSCs) emerged as one of the most intensely studied as it subsumes a variety of capacities: MSCs can differentiate into various subtypes of the mesodermal lineage, they secrete a large array of trophic factors suitable of recruiting endogenous repair processes and they are *** on perinatal tissues to isolate MSCs, we will discuss some of the challenges associated with these cell types concentrating on concepts of isolation and expansion, the comparison with cells derived from other tissue sources, regarding phenotype and differentiation capacity and finally their therapeutic potential.

关键词： Mesenchymal stromal cells Umbilical cord Cord blood Regenerative medicine Cell therapy Stem cells Amnion Chorion Perinatal discarded tissue Fetal membranes

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Therapeutic Effects of Essential Oil from Waste Leaves of <i>Psidium guajava</i>L. against Cosmetic Embarrassment Using Phylogenetic Approach

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American Journal of Plant Sciences 2012年第6期3卷 745-752页

作者： Ahsan Kamran Rohit Mishra Rita Gupta Awadhesh Kumar Ashok Bajaj Anupam Dikshit Biological Product Laboratory Department of Botany University of Allahabad Allahabad India Department of Dermatology and Veneral Diseases M.L.N.Medical College Allahabad India. Department of Horticulture Aromatic & Medicinal Plants Mizoram University Aizawl India

Medicinal plants are facing threats due to loss of habitat and overexploitation of knows species. Therefore the present work shows utilization of essential oil from discarded leaves of Psidium guajava Linn. against human dermatophytic fungi Trichophyton rubrum, T. mentagrophytes, Trichophyton violaceum, Trichophyton tonsurans, Epidermophyton floccosum, Microsporum gypseum and Microsporum canis. The oil was found to be fungicidal at 3.0 μl/ml and it tolerated heavy inoculum of pathogens at fungicidal concentrations. The fungicidal activity of the oil was thermostable, up to 70°C and shelf life was found to be six months, which was maximum the time taken into consideration. The oil having cineole, caryophyllane, copaene, azulene and eucalyptol as main constituents, exhibited broad fungicidal activity. The oil did not show any adverse effect on mammalian skin upto 5% concentration. Phylogeny of the dermatophytes with respect to toxicity of the oil has also been discussed using molecular data. The cost effective formulation from waste leaves can be exploited after undergoing double blind successful multicentral topical testing.

关键词： Essential Oil Dermatophytes Phylogeny discarded Leaves Psidium guajava L. Trichophyton rubrum T. mentagrophyte

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