Journal of Tropical Resources and Sustainable Science (JTRSS)最新文献_第5页

Coronaviruses of the veterinary and socio-economic importance: Classification, pathogenicity, transmission, and evolution of the coronaviruses 冠状病毒对兽医和社会经济的重要性:冠状病毒的分类、致病性、传播和进化

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.781

Mohd Iswadi Ismail

引用次数: 0

Effect of frozen storage on the chemical and sensory properties of red tilapia (Oreochromis niloticus) 冷冻贮藏对红罗非鱼化学和感官特性的影响

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.776

M. Jamaludin, Zulhisyam A.K., Abdullah F.A., Yusoff A.M., Hasbollah H.R.

引用次数: 0

Assessment of plant species diversity and abundance using line-transect method at Pantai Sabak, Kelantan 用样线法评价吉兰丹潘太沙巴植物物种多样性和丰度

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.789

N. A. Amaludin, N. A. Ab Majid, N. N. Mohd Zulkafli, Nur Anis Zarifa Zamri, S. A. Ahmad Zu, M. A. Abdul Karim, R. Zakaria, S. Khamis

{"title":"Assessment of plant species diversity and abundance using line-transect method at Pantai Sabak, Kelantan","authors":"N. A. Amaludin, N. A. Ab Majid, N. N. Mohd Zulkafli, Nur Anis Zarifa Zamri, S. A. Ahmad Zu, M. A. Abdul Karim, R. Zakaria, S. Khamis","doi":"10.47253/jtrss.v9i2.789","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.789","url":null,"abstract":"Coastal areas are environmentally sensitive areas filled with various local inhabitants focusing on the tree species ecosystem continuing to develop according to its environment. Pantai Sabak is one of the well-known eroded beaches in Kelantan due to the natural phenomenon, tidal wave erosion. This study aimed to identify the species availability and determine the species abundance, density, frequency, and diversity found in Pantai Sabak, Kelantan. Certain native species and common tree species at the coastline area are still available, such as Nypa fruticans and Ipomoea pes-caprae. Shocking results are achieved whereby the shoreline area has been degraded by the tidal wave and shoving away some species such as Cocos nucifera. Due to the situation, the coastal area has reached the mangrove area resulted in the species along the transect line is mangrove species namely Excoecaria agallocha. Another species achieved were shrubs and it showed Pantai Sabak has been severely damaged. A total of 1,350 individuals of 30 species from 30 genera belong to 22 families were recorded along two kilometres transect line. By using the diversity index which is Shannon-Wiener Diversity Index (H’) value is 2.99, Shannon-Wiener Maximum Index (H’max) is 3.40 while Shannon Evenness (EH) is 0.88. These results showed the area of the study is still diverse in species hence dominated by shrubs such Lantana camara. Hence, this study only focuses on the species diversity ecosystem, not the causes of the occurrence that occurred. \u0000","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82617276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inhibition of human platelet aggregation by Choisyaternatine isolated from Choisya ternata (Rutaceae) 鸢尾草水鼠碱对人血小板聚集的抑制作用

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.777

I. Wahab, N. Wong, Maria Jose Santoz-Martinez, F. Boylan

{"title":"Inhibition of human platelet aggregation by Choisyaternatine isolated from Choisya ternata (Rutaceae)","authors":"I. Wahab, N. Wong, Maria Jose Santoz-Martinez, F. Boylan","doi":"10.47253/jtrss.v9i2.777","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.777","url":null,"abstract":"A newly reported alkaloid was isolated from the hexane extract of Choisya ternata Kunth. (Rutaceae) leaves, identified as 6,8-Dimethoxy-7-(3-methylbut-2-enyloxy)quinolin-2-ol (choisyaternatine) (A), together with the known compounds skimmianine (B), lup-20(29)-en-3?-ol (lupeol) (C) and tecleamaniensine A (D). Compounds C and D are reported for the first time in this species. The structures of isolated compounds were elucidated by extensive spectroscopic analyses and comparison with previously reported spectroscopic data. The structure of choisyaternatine was further confirmed based on X-ray data analysis. Anti-platelet activity of hexane extract, choisyaternatine and skimmianine was also evaluated. The extract was able to significantly inhibit collagen-induced platelet aggregation at all concentrations tested (25, 50 and 100 µg/ml). The new compound, choisyaternatine, has shown a significant inhibition of collagen-induced platelet aggregation demonstrated in a concentration dependent manner from 250 µM. The concentrations which inhibit 50% of platelet aggregation (IC50) were found to be 564 µM for skimmianine and 698 µM for choisyaternatine. This is also the first report for the antiplatelet activity for this plant and these alkaloids using human platelets.","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75164234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of microbiological quality of vegetables irrigated with Kano Abattoir wastewater 卡诺屠宰厂废水灌溉蔬菜微生物质量的测定

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.780

M. A. Abubakar, O. A., B. K.

{"title":"Determination of microbiological quality of vegetables irrigated with Kano Abattoir wastewater","authors":"M. A. Abubakar, O. A., B. K.","doi":"10.47253/jtrss.v9i2.780","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.780","url":null,"abstract":"Microbiological contamination of vegetables occurs directly along the food chain resulting in a serious Health problem and consequently leading to death during the acute phase of the microbial infection. A total of 15 different samples were randomly purchased and analyzed for the presence of enteropathogenic organisms. Enumeration of aerobic mesophilic bacteria, fungi and coliform counts were carried out using standard procedures which is the use of most probable numbers (MPN). Isolation and identification of some pathogens was also carried out using standard procedures. The mean count of all the three (3) different samples (cucumber, tomato and lettuce) were exceeded the maximum acceptable limit (105cfu/g/ml) set by the Food and Agricultural Organizations (FAO). The highest mean count for both bacteria and fungi in all the 15 samples; cucumber with 1.52x105 cfu/g of bacteria and 1.01x105 cfu/g of fungi, tomato with 1.34x105 cfu/g of bacteria and 1.06x105 cfu/g of fungal, whereas, lettuce with 1.18x105 and 1.29x105 of bacteria and fungi respectively. Out of 15 different samples examined the occurrence of enteropathogenic organisms in all the sample were found to be 65% of cucumber while tomato had 60% followed by lettuce with 60%. This shows that cucumber samples are more contaminated due to the higher percentage of occurrence the enteropathogenic organisms in it. The results indicated that the vegetable samples examined in this study did not meet bacteriological quality standards. The implications of the results on human and environmental health are discussed.","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88134202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular identifications of land snails (Gastropoda) and determination of its associated parasites 陆生蜗牛(腹足纲)的分子鉴定及其相关寄生虫的测定

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.787

Suhaila Ab Hamid, Izrena Othman, N. Ramli

{"title":"Molecular identifications of land snails (Gastropoda) and determination of its associated parasites","authors":"Suhaila Ab Hamid, Izrena Othman, N. Ramli","doi":"10.47253/jtrss.v9i2.787","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.787","url":null,"abstract":"Freshwater snail is known to be an intermediate host for parasites. However, little is known on terrestrial snails whether they can become host for any parasites as well. The identification of the land snails also need confirmation as there are disagreements on the classification result of land snail species. Therefore, this study was conducted to determine the prevalence of snail parasites in livestock and poultry farms from Penang and Kedah, Malaysia. Identification of the snail species was conducted based on the morphological features and mitochondrial cytochrome c oxidase subunit I (COI) gene analysis. Out of 105 individual snails collected, four species were found in this study with the highest prevalence of 47.62% (50/105) snails identified as Physella acuta followed by Macrochlamys sp. with 31.4% (33/105). While 14.3% (15/105) were identified as Physella cubensis and the lowest prevalence was identified as Filopaludina sp. with 6.7% (7/105). Among these four species, only Physella acuta and Macrochlamys sp. were found to be infected with helminth parasites namely trematode and nematode. Macrochlamys sp. recorded the highest prevalence of parasitic infection with the prevalence of 87.9%. Besides, there are 134 of endoparasite and 36 of ectoparasite found in this study namely, Barchylaima fuscatum (helminth), 3 unknown nematode, and 36 Riccardoella limacum or slug mite which was found on the surface and in the mantle cavity of the snails. \u0000","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82086446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preliminary study on hymenopteran distribution and abundance from island ecosystem of Tuba Island Forest Reserve, Langkawi 兰卡威图巴岛森林保护区岛屿生态系统膜翅目昆虫分布及丰度的初步研究

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.788

N. B. Mohammad Naser, Wafiqah Ismail, Norashirene Mohamad Jamil, Nur ‘Aliyaa Nizam, K. Hambali, S. K. Mohd Hatta

{"title":"Preliminary study on hymenopteran distribution and abundance from island ecosystem of Tuba Island Forest Reserve, Langkawi","authors":"N. B. Mohammad Naser, Wafiqah Ismail, Norashirene Mohamad Jamil, Nur ‘Aliyaa Nizam, K. Hambali, S. K. Mohd Hatta","doi":"10.47253/jtrss.v9i2.788","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.788","url":null,"abstract":"The study was performed to determine the diversity and distribution of Hymenoptera across the environmental gradient ranging from fringe forest, mid forest to inner forest. The study was conducted in a selected area of Tuba Island Forest Reserve from 17th to 21st September 2020 using Malaise trap, an insect capturing trap. During this study, a total of 133 individuals of Hymenoptera were sampled from 12 families and 27 morphospecies. Hymenoptera was most abundantly found in the forest fringe with 64 individuals (11 families, 25 morphospecies) and least abundant in the inner forest with 26 individuals (7 families, 8 morphospecies). The top three highest number of individuals recorded were Formicidae (43 individuals), Braconidae (28 individuals) and Ichneumonidae with 27 individuals. Shannon-Weiner Diversity Index (H') showed that the forest fringe had the highest diversity value with H'=1.80 while the lowest was recorded in the mid forest with H'=1.43. The Evenness Index (E’) was highest at mid forest (E’=0.81) and the Margalef Richness Index (R’) value recorded the highest at forest fringe indicating a high species richness with R’=2.40. Kruskal-Wallis test reveals that the distribution of Hymenopterans from the forest fringe to the inner forest did not differ significantly with P>0.05. High similarities in microclimate variables (monsoon season, temperature, humidity, and light intensity), resources availability, forest features, hiding places, and the presence of predators are among the factors influencing the homogeneity of the composition and abundance of Hymenoptera in Tuba Island. This study is the first checklist of Hymenoptera in Tuba Island and can be utilised as a baseline dataset for further ecological research at Tuba Island. \u0000","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87701534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lightning in Northeast Bangladesh: Relation with climatic variables, consequences and adaptation 孟加拉国东北部的闪电:与气候变量、后果和适应的关系

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.784

A. Mazumder, Md. Bahuddin Sikder, M. Islam, M. R. Haque, Sajid Hamid Talukder

{"title":"Lightning in Northeast Bangladesh: Relation with climatic variables, consequences and adaptation","authors":"A. Mazumder, Md. Bahuddin Sikder, M. Islam, M. R. Haque, Sajid Hamid Talukder","doi":"10.47253/jtrss.v9i2.784","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.784","url":null,"abstract":"In Bangladesh, the lightning during a thunderstorm has recently been officially declared as natural disaster, resulting in numerous fatalities each year, especially in the country's northeast. This study aims to look into the relationships between lightning and climatic variables, the spatial distribution of deaths, people's perceptions of the disaster's consequences and adaptation measures, and the influencing factors that make people victims in Sunamganj District. Several statistical approaches, such as descriptive statistics, correlation, and the Mann-Kendall Test, were used to meet the study objectives by examining time series data of climatic variables, lightning events, and household survey data. The data imply that lightning strikes have a positive and statistically significant relationship with climatic variables such as temperature, rainfall, humidity, and air pressure. Moreover, that lightning strikes may become more common in the future as climatic variables increase. The perceived consequences of lightning strikes include disruption of human life, injury, damage and or burning of environmental and infrastructural elements, etc. Going outside during a thunderstorm and/or remaining outside during a thunderstorm are the primary factors contributing to a tragic accident. Those who were engaged in income-generating activities during the monsoon, like agricultural operations such as Boro Rice farming and fishing, were the most vulnerable to this hazard. Therefore, several adaptation strategies, including house safety and facilitating emergency shelter; assisting victim families for recovery and rehabilitation; travelling in covered vehicles during a thunderstorm; and disseminating knowledge about proper lightning safety measures, outside movement during a thunderstorm, and first aid information for initial treatment through awareness building campaign should be implemented to reduce the number of casualties.","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78119362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The effect of ratio between Tilapia fish (Oreochromis niloticus) and Otoshimi on properties of sago fish crackers 罗非鱼与Otoshimi配比对西米鱼脆片性能的影响

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-12-31 DOI: 10.47253/jtrss.v9i2.786

Abdul Rashed N. S., Abdullah F. A., Yusoff A. M., Hasbollah H. R., Ahmad M. I., Razab M. K. A. A, Zulhisyam A.K., M. Jamaludin

{"title":"The effect of ratio between Tilapia fish (Oreochromis niloticus) and Otoshimi on properties of sago fish crackers","authors":"Abdul Rashed N. S., Abdullah F. A., Yusoff A. M., Hasbollah H. R., Ahmad M. I., Razab M. K. A. A, Zulhisyam A.K., M. Jamaludin","doi":"10.47253/jtrss.v9i2.786","DOIUrl":"https://doi.org/10.47253/jtrss.v9i2.786","url":null,"abstract":"Fish crackers are deep fried crackers normally made using fish and starch, and is a well known snack in South East Asia. Formulation of the fish crackers plays an important role not just in the quality of the product, but also for branding. In this study, fish formulation using tilapia and otoshimi was used which was added with sago as the starch base. A tilapia-based formulation of 1:1 with Sago showed good puffing with the highest expansion percentage at 4.21±0.66 and lowered hardness (2832.0±437.97 N/cm2) compared to the other formulations. Meanwhile, although increase expansion was associated with increase oil absorption, the 1:1 ratio of tilapia to sago had lower oil absorption percentage (4.20±0.86) compared to increasing sago in the formulation (1:1:4, Tilapia, Otoshimi, Sago which had oil absorption percentage of 6.53±3.22 %, and 1:0:2 which had oil absorption percentage of 5.50±1.37). Although the overall quality does not reflect a good quality cracker, it was interesting to note that tilapia alone with sago showed better expansion, low oil absorption and reduce hardness. \u0000","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89586556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance of Modified Anaerobic Hybrid Baffled (MAHB) bioreactor treating recycled paper mill effluent: Effects of organic loading rates 改性厌氧混合折流板(MAHB)生物反应器处理造纸废水的性能:有机物负荷率的影响

Journal of Tropical Resources and Sustainable Science (JTRSS) Pub Date : 2021-09-02 DOI: 10.47253/jtrss.v6i1.720

S. R. Hassan, I. Dahlan

引用次数: 2