Food Science and Technology Research Papers/Topics

Physico-Chemical and Antimicrobial Study of Hydro-Distilated Essential Oil Obtained from Nigerian Pepper (Capsicum frutescens)

Globally the industrial utilization of pepper is moving from the use of conventional powder to the extracts consequent upon their technical and economic benefits. Nigeria should not be left out of this global trend as a result of the enormous quantity of pepper extracts now used in the food industries.The antimicrobial activity of essential oil of Capsicum frutescens was assessed in this study. The physicochemical properties of essential oil obtained from fresh and dried pepper was carried ou...

Physico-chemical Properties of Cocoyam Flour

 ABSTRACT This work examined the physicochemical properties of cocoyam flour. Cocoyam corms were cleaned, peeled, diced, blanched, sundried, milled and sieved to obtain flour of fine particle sizes. Physical properties and chemical composition of the flour were determined in accordance with standard methods. The results of the physical properties ranged from oil absorption capacity 2.96 g/ml, water absorption capacity 3 g/ml, gelatinization temperature 68oC, least gelation capacity 0.4 g/ml,...

EFFECT OF PLANT EXTRACT of Anthocliesta djalonensis ON THE ZONE OF INHIBITION OF MICROORGANISMS ISOLATED FROM FRUITS (ORANGE, WATERMELON, APPLE AND PINEAPPLE) JUICE.

The effect of Anthocleista djalonensis leaves on the zone of inhibition of microorganism isolated from fruits (Watermelon, pineapple, apple and orange) juice stored at 30+10C for 20days were investigated using agar diffusion and dilution methods. The result obtained reveled that the Zone of inhibition Staphylococcus aureus was 18mm (juice isoaltes), clinical 17mm while typed culture was 13mm. Bacillus cereus was 7mm (clinical isolate), while juice isolate was 10mm. The minimum inhibitory conc...

EFFECT OF γ-IRRADIATION ON PHYSICAL, FUNCTIONAL AND PASTING PROPERTIES OF FIVE RICE CULTIVARS

ABSTRACT Irradiation is a processing technology for improving the safety and quality by extending the shelf-life of food products. Effect of γ-irradiation (2, 4, 6, 8 and 10 kGy) on color, functional and pasting properties of flours and starches of five cultivars of rice was investigated. Color (L, a, and b) of non- and γ-irradiated rice cultivars was measured, and the deltachroma (DC), color difference (DE) and hue angle were calculated. Functional and physicochemical (pasting) of the mill...

PRODUCTION OF PEANUT BUTTER

ABSTRACT             Production of Peanut Butter was done using roasted groundnuts, salt and yeast. The process involved roasting and grinding into fine paste, after which equal amount of honey and vegetable oil were added, sugar, salt, followed by powdered yolk of an egg was added as colouring agent. The product produced peanut butter was yellowish in colour, had a smooth and soft texture which spread easily on bread and had a fine peanut taste. It was put under observation for...

Proximate and sensory properties of cookies produced from banana flour and coconut milk blend

ABSTRACT  Cookies were produced from the blends of banana flour and coconut milk. The proximate  composition, metabolised energy value and sensory characteristics of the cookie were  evaluated. Selected functional properties of the UBF were also determined. The composition  varied between coconut milk and margarine (100%; 0%, 50%; 50%, 25%; 75%, 75%; 25%,  0%; 100% respectively and the control). The UBF had possessed water and oil absorption of  185% and 139% respectively, a bulk densit...

PROXIMATE COMPOSITION, MINERAL CONTENT AND THE EFFECT OF ETHYLENE GLYCOL AND ETHANOL (NON-AQUEOUS SOLVENTS) ON THE FUNCTIONAL PROPERTIES OF PROTEIN CONCENTRATES OF CITRULLUS COLOCYNTHIS L.

Abstract - Determination of proximate composition, mineral content, and the effect of ethylene glycol and ethanol at varied pH on the functional properties using standard methods were carried out on the protein concentrates of two samples of Gourd Melon (Citrullus colocynthis L.), one containing hull and the other without hull. Results for the proximate composition for the sample without hull gave 3.99% Moisture Content, 5% Ash Content, 16.455% Fat Content, 52.875% Crude Protein, 6.855% Crud...

EFFECT OF PROCESSING ON THE CHEMICAL, FUNCTIONAL AND ANTI NUTRITIONAL PROPERTIES OF AFRICAN YAM BEAN (AZIMA)

African yam bean (Sphenostylisstenocarpa) is an underutilized food legume crop in the tropics that is not as popular as other food legumes crop (Moyib et al., 2008). It is one of the neglected indigenous grain legumes in Nigeria. It is produced mostly in the eastern part of the country where it is consumed in different forms such as snacks, delicacy, man meal etc. It can be used for the fortification of other foods (Eke, 1997) The high protein content of African yam bean makes it an important...

FOOD POISONING: CAUSES, RISK FACTORS AND CONTROL

ABSTRACT  Food poisoning is one of the common health problems globally especially in African countries usually due to the inability to enforce food safety principles. When disease-causing bacteria, viruses or parasites contaminate food, they can cause food- related diseases. Such a bacterium, virus or parasite is known as pathogen. Food poisoning is the diseases caused by these pathogens when a contaminated food or drink is consumed. Other contaminants include natural occurring toxins and he...

THE MICROORGANISMS AND COMPOUNDS INFLUENCING THE ORGANOLEPTIC PROPERTIES OF UGBA (FERMENTED Pentaclethra macrophyllea BENTH SEEDS)

ABSTRACT Ugba is a delicacy popular among the Ibo ethnic group of Nigeria, made by the fermentation of boiled seeds of African oil bean (Pentaclethra macrophyllea Benth). The microorganisms and compounds influencing the organoleptice properties of ugba were studied. The pure cultures of these microorganisms isolated from (ugba) sample produced by traditional method, were used in singles and in combinations to ferment African oil bean shreds. The ugba so fermented were analyzed organoleptical...

FOOD CONSUMPTION PATTERN, LIFESTYLE AND BODY MASS INDEX OF MARKET WOMEN (A CASE STUDY OF IKOSI-ISHERI LOCAL GOVERNMENT AREA OFLAGOS STATE, NIGERIA)

ABSTRACT The study was carried out to assess the food consumption pattern, lifestyle and body mass index of market women in Ikosi-isheri local government area of Lagos state. One hundred and fifty respondents were selected from two markets using random sampling method. Data were collected using 24-hour dietary recall, diet history, anthropometric data such as height, weight and body mass index was also calculated. The data was analyzed by using descriptive analysis such as frequency and per...

CONSUMER ACCEPTABILITY OF SPICED COMPOSITE BREAD

ABSTRACT This study was conducted primarily to evaluate the consumer acceptability of spiced composite bread. The socio-economic characteristics, spiced composite bread consumption pattern of the consumer and the purchase intent through the use of questionnaire were also determined using a structured questionnaire. The bread samples were evaluated in terms of appearance, taste, texture and overall liking using nine-point hedonic scale. Interestingly, over 95% of the consumers (N=200) rated s...

THE INFLUENCE OF PROCESSING METHODS ON THE PROTEIN AND CYANIDE CONTENT OF AFRICAN YAM BEAN (Sphenostylis Stenocarpa)

ABSTRACT  Raw African Yam bean (Sphenostylis stenocarpa) was subjected to various processing methods Viz: steeping in water for 6 hr and then boiling for 10, 20, 30, minutes respectively (samples B); steeping in water for 12 hours and then boiling for 10, 20, 30, minutes respectively (sample C) and finally sample A was raw yam bean which served as control.  The entire sample was dry – milled into fine flours. The glycosidic cyanide, crude protein, ash, moisture, some functional prop...

THE EFFECT OF PROCESSING ON AFZELIA AFRICANA (AKPALATA) AND BRACHYSTEGIA SPP FLOUR AS SOUP THICKNER

ABSTRACT The effect of different processing methods on the functional properties of Akpalata (Afzelia Africana) and Achi (Brachystegia spp) flours were investigated. Parameters studied included the proximate composition, functional properties and sensory evaluation. Results of the proximate showed that (1% moisture 13, fat 13.83%, Ash 5.3%, crude protein 17.76% crude fibre 2.8%, carbohydrate 47.78%)while functional properties results showed that (Emulsification Capacity 2.7%, Water absorptio...

PROMOTE COMPOSITION OF PLEUROTUS TUBERRCOGININ FROM ENUGU AREA.

ABSTRACT Proximate analysis of Pleurotus tuberregium was determined to ascertain its nutritional composition. the sample was analysed for its  moisture, crude fibre, ash, fat, protein and carbohydrate content. Using the method of AOAC. The results for the analysis showed that the materials has moisture content of 2.5% ash content of 1.50%, fat content of 3.00%, crude fibre content of 3.02% and carbohydrate content of 89.32%. Carbohydrate has the highest composition of the nutrients. This in...


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