Nwozo Sarah Onyenibe
University of Ibadan

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THE EFFECT OF PROCESSING METHODS ON THE NUTRITIONAL QUALITY OF AFRICAN BREADFRUITS (TRECULIA AFRICANA) SEEDS Nwozo Sarah Onyenibe; Julius Oluwaseun Oluwafunmilola; Stanley Udogadi Nwawuba
Indonesian Food and Nutrition Progress Vol 16, No 2 (2019)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ifnp.45545

Abstract

The extracted seeds of African breadfruit are identified to be extremely healthy whenever it is correctly processed. Therefore, the aim of the present study was to evaluate the effects of processing methods on the nutritional quality of African breadfruit seed. A qualitative phytochemical analysis including: Alkaloid, Flavonoid, Saponin, Tannin, Anthraquinone, Terpenoids, Steroid, and Cardiac Glycosides for the different fraction of African breadfruit seed was performed using a standard method. The result revealed the presence and greater amount of phytochemical for the raw fraction; seven in eight, six in eight for steamed fraction, and four in eight for boiled and roasted respectively. Anti-nutrient, Proximate, and Mineral Content were also conducted using standard methods. The amino acid composition was determined using High-Performance Liquid Chromatography (HPLC). The results of the present study revealed that anti-nutrients including Phytate, Tannins, and Oxalate were significantly p<0.05 reduced in the boiled fraction 5.47±0.15, 3.42±0.02 and 6.89±0.05, and highest in the raw fraction 7.77±0.01, 5.09±0.03 and 9.34±0.14. The proximate composition including; percentage crude fat, Ash, Carbohydrate, Fatty acid, and Energy value were significantly lower p<0.05 in the boiled fraction relative to the other fractions. Mineral contents; calcium, magnesium, sodium, potassium, and phosphorus were also significantly p<0.05 elevated in the boiled fraction relative to the raw, steamed, and roasted fraction. The amino acid composition was highest in the roasted and boiled fraction 57.350 and 56.978, and lowest in the steamed and raw fraction 35.754 and 28.748 respectively. Therefore, boiling (cooking) is encouraged for the preparation of African breadfruit seed.
A Comparative Study on The Effect of Cooking Methods on The Nutritional Contents of Ripe and Unripe Plantain (Musa Paradisiaca) Stanley Udogadi Nwawuba; Nwozo Sarah Onyenibe
Indonesian Food and Nutrition Progress Vol 18, No 2 (2021)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ifnp.61906

Abstract

Plantains are conventionally consumed either after boiling, steaming, roasting or frying which are there major cooking methods employed in the utilization in Nigeria.  Method of preparation and cooking could either reduce or improve the nutrient quality of foods. Thus the objective of the present study was to investigate the effect of cooking methods on the nutritional content of ripe and unripe plantain. Ripe and unripe plantain was obtained and divided into four (4) portions; raw which served as the control, boiled, fried and roasted. Analysis of the proximate, vitamin and mineral content of the samples were carried out using standard methods and our result revealed that boiling as a cooking method significantly retained the levels of minerals, vitamins and proximate composition of ripe and unripe plantain relative to frying and roasting. In conclusion we recommend that boiling should be predominately employed during cooking of neither ripe nor unripe plantain.