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美国留学生论文Background of the Study写作参考 [3]

论文作者:www.51lunwen.org论文属性:硕士毕业论文 dissertation登出时间:2016-01-21编辑:zhaotianyun点击率:8594

论文字数:1603论文编号:org201511262304563660语种:英语 English地区:中国价格:免费论文

关键词:人口增长histaminepopulations grow

摘要:本文是美国留学生论文Background of the Study写作参考,主要讲述了随着世界人口的增长,对人类营养状况、健康状况等各方面产生的影响。

s to constantly monitor the level of histamine, the researcher conceptualize this theory by conducting a test on the level of histamine in selected fishes sold in the Public Market of General Santos City. The diagram below shows the conceptual framework of this research.


范围和限定——and Delimitation

This study is limited to the determination of histamine level of raw fish species sold at the main public market of General Santos City using the fluorometric method, regardless of temperature storage and sources. The fish samples to be considered for histamine analysis will be Decapterus maruadsi, Selar crumenophthalmus,Oreochromis niloticus and Chanos chanos. Three trials with three replications of sample per species will be considered for the analysis. Sampling will be conducted for three consecutive weeks. The analysis will be conducted by the researcher and laboratory analyst of the Bureau of Fisheries and Aquatic Resources (BFAR) Laboratory, Lagao, General Santos City.


研究意义——Significance of the Study

Excessive levels of histamine in fish and fishery products constitute a serious risk for human health. It is appropriate to adopt community level measures of fishery products to ensure effective and uniform protection for all the members of society. This study will assess the histamine level of most consumed raw fish species sold at the main public market of General Santos City. The result of the study will serve as basis for the authorities to carry out necessary checks, particularly the determination of histamine level in fish and fishery products in public markets to safeguard public health and provide them the foods that are safe and unadulterated. This study is also necessary to update the standards set by Bureau of Fisheries and Aquatic Resources (BFAR) for raw fresh fishes.

Moreover, the knowledge gained from this study will notify both fish sellers and consumers that hygienic quality of fish should be instituted to control the histamine level of fish and fishery products within the standard.


定义——Definition of Terms

The following terms are operationally defined for the purpose of understanding the meaning of the terms used in the study.

Chanos chanos Forsskal. This refers to a species of fish is commonly known as milkfish reaching a length of about 150 cm (about 5 ft) and a weight of 14 kg (30 lb), with a slender large body, silver scales, a greenish back, and a white belly. It has big eyes, a small, toothless mouth, and a large, deeply forked tail.

Decapterus maruadsi Temminck & Schlegel. This refers to a species of fish commonly known as Round Scad which has an elongated body, upper jaw reaching to just below eye brow margin, teeth in jaws in a single series, those of upper jaw confined to anterior end of jaw and vomerine teeth in a transverse strip.

Fish. This refers to fresh or saltwater fish which is intended for human consumption.

Foodborne disease outbreak. This refers to the occurrence of two or more cases of a similar illness (fish poisoning) resulting from the ingestion of fish.

Histamine. This refers to the white crystalline compound (C5H9N3) formed when bacteria produce decarboxylase, which acts on论文英语论文网提供整理,提供论文代写英语论文代写代写论文代写英语论文代写留学生论文代写英文论文留学生论文代写相关核心关键词搜索。

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