Tamarind drink is a local non-alcoholic beverage, mostly processed and sold in Ghana by people of the Dagomba ethnic descend. The drink is a sweet-sour beverage made from the pulp of the indigenous African tamarind tree (Tamarindus indica). It has since ancient times been used for the treatment of inflammations, fevers, and alcohol intoxication. The juice from tamarind is rich in vitamin B3, potassium and is known to have cathartic, astringent, refrigerant, and antiseptic effects. This study seeks to assess the microbial quality of Tamarind drink sold within the Tamale metropolis.
The study will be empirical, involving a total of 30 tamarind drink samples purchased from ten different vendors all over the Tamale metropolis. Using a range of general and specific microbiological media including nutrient agar, MacConkey agar, Potato Dextrose Agar, enumeration of the microbes will be carried out. Colonies will be tested for Gram reaction, and the biochemical assay will be used to confirm morphological characteristics of the colonies following microscopic examination at x400 and x1000 magnifications. Questionnaires will be administered.
Table of Contents
1.0 BACKGROUND
1.1 Introduction
1.2 Problem Statement
1.3 Justification of the Study
1.4 Research Questions
1.5 Objectives of the study
2.0 LITERATURE REVIEW
2.2 Classification
2.3 Chemical composition
2.4 Production and Cultivation
2.5 Main Uses of Tamarind Products
2.6 Functional Properties
3.0 METHODOLOGY
3.1 Study Design
3.2 Study Site
3.3 Study Population
3.4 Sample Size
3.5 Inclusion Criteria
3.6 Exclusion criteria
3.7 Sampling technique
3.8 Sampling and data collection
3.9 Sample preparation
3.10 Bacteriological analyses
3.11 Enumeration and identification of Fungi
3.12 Determination of pH and temperature
3.13 Data Handling
3.14 Statistical Analyses
3.15 Ethical clearance
Research Objectives and Focus Areas
This research aims to evaluate the microbial quality and safety of locally produced tamarind drinks sold within the Tamale metropolis, addressing concerns regarding unhygienic production practices that could lead to public health risks.
- Assessment of microbial load and identification of pathogen species in tamarind drink samples.
- Evaluation of the unhygienic production processes and vendor practices in commercial outlets.
- Determination of safety limits for microbial contaminants in locally prepared beverages.
- Development of insights to inform public health authorities and improve food safety standards.
Excerpt from the Book
1.2 Problem Statement
In Ghana, there is a rising popularity in the consumption of tamarind drink because consumers perceive locally produced drinks are healthier than their imported counterparts since they can quickly identify the ingredients they are familiar with in these drinks (Gamor et al., 2015).
Tamarind drink is usually prepared fresh in, typical household and commercial outlets. Nonetheless, the method of preparation is unhygienic and inconvenient (Foo et al., 2013). Besides, fresh unpasteurized tamarind juice has a long history of numerous outbreaks due to contamination of pathogenic microorganisms such as E. coli and Salmonella (S. typhimurium) (Daniyan & Muhammad, 2008). In recent times, there has been an increasing demand for tamarind drink due to its health benefits and uses in culinary which contribute to the production of commercial tamarind drink.
However, the production of tamarind beverage is labor intensive, has low aesthetic value, poor hygiene practice, short product shelf life and no standardization of ingredients (Adeola & Aworh, 2013). This could be attributed to a lack of development and effort in tamarind drink processing. Previous finding by Chavasit et al. (2006) claimed that commercial tamarind beverages tested had no presence of coliform, E.coli and mould, but they were 100% contaminated by yeast. Thermal treatment is the conventional and widely used method in pasteurizing tamarind beverages. However, thermal treatment resulted in a change in flavor, appearance and especially nutritional content such as antioxidants in tamarind drink (Gabriel, 2015). This defeats the purpose of drinking tamarind drink, which is known to cure sore throat, fever and many other diseases. Tamarind fruits are also a potential source of microbes. The cloth used for extraction, if not well cleaned, could be another contributor. Preparation includes steps that incorporate exposure to sometimes unhygienic environmental conditions, and heat treatment is not used in the preparation. Citric acid reduces pH in tamarind drink. This shows that it is a potential source of microbial transmission due to the presence of various microbial contaminants found, hence Musah et al., (2014) suggested the need for regular monitoring of the microbial quality of this drink. Hence, the microbial safety of locally prepared Tamarind drink in Tamale requires investigation and documentation.
Summary of Chapters
1.0 BACKGROUND: This chapter introduces the cultural and economic significance of tamarind drinks in Ghana while highlighting the critical public health concerns regarding its hygienic preparation and potential microbial contamination.
2.0 LITERATURE REVIEW: This chapter examines existing scientific knowledge regarding the classification, chemical composition, and diverse nutritional and medicinal properties of the tamarind plant, as well as its established antimicrobial effects.
3.0 METHODOLOGY: This chapter details the empirical research design used to collect and analyze tamarind drink samples via microbiological techniques, questionnaires, and statistical evaluation to assess overall product quality.
Keywords
Tamarind drink, Microbial quality, Tamale metropolis, Food safety, Pathogens, Hygiene practices, Tamarindus indica, Public health, Bacterial load, Beverage production, Food contamination, Analytical microbiology, Pathogenic microorganisms
Frequently Asked Questions
What is the core focus of this research project?
The research focuses on assessing the microbial quality of locally produced tamarind drinks sold in the Tamale metropolis of Ghana to ensure consumer safety.
What are the key thematic areas addressed in this study?
The primary themes include the chemical profile of tamarind products, the hygienic conditions of local beverage production, and the quantification of potential microbial and fungal contaminants.
What is the primary objective of this work?
The main objective is to investigate the microbial safety and hygienic practices associated with tamarind drink vendors to reduce potential foodborne health risks.
Which methodology is employed in this scientific study?
The study utilizes empirical methods, involving the collection of 30 samples, administration of questionnaires, and laboratory analysis using serial dilution and plating on specific growth media.
What topics are discussed within the main chapters?
The chapters cover the background and problem statement, a comprehensive review of existing literature on tamarind properties, and a detailed methodology for conducting bacteriological and fungal analyses.
Which keywords categorize this research?
Key terms include tamarind drink, microbial assessment, public health, food hygiene, pathogenetic bacteria, and nutritional properties.
Why is the local preparation of tamarind drink considered a potential health risk?
The lack of standardized hygiene, the use of unsterile extraction cloths, and the absence of effective pasteurization methods are linked to potential transmission of pathogenic organisms.
How is the specific issue of sample contamination addressed in the analytical phase?
The study employs strict aseptic conditions and employs serial dilution techniques followed by morphological characterization and microscopic examination to isolate and identify specific microbes.
- Arbeit zitieren
- Mubarik Mahamud (Autor:in), 2020, Microbial Assessment of Tamarind Drink Sold in Tamale Metropolis, München, GRIN Verlag, https://www.grin.com/document/1439098
