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Schima wallichii
About: Schima wallichii is a research topic. Over the lifetime, 160 publications have been published within this topic receiving 1382 citations.
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01 May 2021
TL;DR: In this paper, the authors examined the decomposition rate of dominant species and their role in the nutrient cycling in a low montane forest in Gunung Halimun Salak National Park, West Java.
Abstract: The research of decomposition rate of Altingia excelsa Norona, Schima wallichii (D.C.) Korth., Castanopsis acuminatissima (Bl.) A. DC., C. javanica (Bl.) A. DC., and Quercus lineata Blume was carried out in the low montane forest in Gunung Halimun Salak National Park, West Java. The aim of the research was to examine the decomposition rate of dominant species and their role in the nutrient cycling. The decomposition rate of those dominant species was carried out by using the litterbag methods. The highest decomposition rate was observed for Q. lineata followed by C. javanica, C. acuminatissima, S. wallichii, A. excelsa and the mixed litter in Cikaniki research station. Meanwhile, in the Wates plot, the highest rate was observed for C. acuminatissima followed by C. javanica, Q. lineata, S. wallichii, A. excelsa and the mixed litter. This research shows that C. acuminatissima decomposed faster compared to other dominant species due to their litter quality combination of high nitrogen and low lignin content. Carbon and nitrogen released pattern were almost similar for the five dominant species. Based on the decomposition rate and the nutrient released pattern, it showed that the high litter decomposition rate of dominant species contributed to the rapid nitrogen released.
TL;DR: Among all the extracts, acetone extract was found most active against Escherichia coli HD10 and Bacillus liherfernis 10341 but this extract have no effect in case of Vibrio cholera 64.
Abstract: Schima wallichii (DC.) Korth. is a large evergreen and well known tree of Sikkim Himalayan region. The bark of this plant is traditionally used as antipyretic, antiseptic, anthelmintic, wound healing agent. In the present study an attempt has taken to investigate for potential antibacterial activity by taking different extracts of fruits of Schima wallichii (DC.) Korth. against Gram-positive bacteria (Staphylococcus aureus NCTC 8530 and Bacillus liherfernis 10341) and Gram-negative bacteria (Escherichia coli HD10; Salmonella paratyphi A2 and Vibrio cholera 64). Antibacterial activity of Schima wallichii (DC.) Korth. fruit extracts (benzene, acetone and aqueous) were assayed by the disc diffusion method. Among all the extracts, acetone extract was found most active against Escherichia coli HD10 and Bacillus liherfernis 10341 but this extract have no effect in case of Vibrio cholera 64. The MIC (Minimum Inhibitory Concentrations) of the extract was found 100 µg/ml for Escherichia coli HD10 and 150 µg/ml for Bacillus liherfernis 10341. The study promises an interesting future for designing a potentially active antibacterial agent from Schima wallichii (DC.) Korth. fruit.
Posted Content•
TL;DR: In this article, the authors proposed 15 timber tree species and 8 non-timber species for planting in the Hoang Su Phi district in HoangSu Phi district, Vietnam.
Abstract: North region in Hoang Su Phi district, a largest forest land area including 5 communes received a great attention of Vietnam’s and local government. In this region, natural forests consist of a number of different forest types in which most of them are young forests and regenerated forests with some main species such as Schima wallichii (DC.) Korth., Alnus nepalensis D. Don, Betula alnoides Buch. - Ham., Toona surelii (Blume) Merr. Despite of the fact that these forest areas had a low volume, they still have a great potential to develop much better such as having a good regeneration tree layer, a larger of proportion of target trees and a high percentage of regenerated trees at a good quality level. Moreover, the group of non-timber trees, a rich species diversity group, has 289 species of 4 main life-forms. In study area, the largest plantation area consist of 3 species (Pinus Kesiya, Acacia mangium and Cunminghamia lanceolata) that adapted to site condition and found to have a normal growth. Based on evaluation criteria for afforestation purpose, this study selected 10 species for protection forests and 19 species for plantation production purposes. However, when combined with the results of forest investigation and ecological conditions in research region, the number of selected forest tree species were proposed 15 timber tree species and 8 non-timber species for planting in this area.
Patent•
05 Aug 2010
TL;DR: In this paper, the authors proposed a multi-purpose antiphlogistic whose effective components are highly safe substances derived from naturally occurring materials such as Schima wallichii or Quercus semicarpifolia.
Abstract: PROBLEM TO BE SOLVED: To provide a multi-purpose antiphlogistic whose effective components are highly safe substances derived from naturally occurring materials. SOLUTION: The antiphlogistic includes an extract from the bark of Schima wallichii or the bark of Quercus semicarpifolia and not less than two kinds selected from among phospholipase A2 inhibitors, hyaluronidase inhibitors, and histamine release inhibitors as effective components. COPYRIGHT: (C)2010,JPO&INPIT