Bolanle Akinwande

• B.Sc.; M.Sc.; Ph.D.
• Professor at Ladoke Akintola University of Technology

This study assessed mineral fertilisation impact on tuber yield and food quality in yam genotypes—Dioscorea alata and Dioscorea rotundata. Four genotypes, each from D. alata and D. rotundata, were used in field experiments conducted in Ibadan, Nigeria, during the 2017 and 2018 cropping seasons. Experiments were conducted under low soil NPK fertilit...

This study assessed the impact of mineral fertilization on tuber yield and food quality of yam genotypes, specifically Dioscorea alata and Dioscorea rotundata. Four genotypes, each from D. alata and D. rotundata, were used in field experiments conducted in Ibadan, Nigeria, in the 2017 and 2018 cropping seasons. Experiments were conducted under low s...

The effect of African Yam Bean (AYB) flour substitution on the nutritional, functional and pasting properties of yellow root cassava grits was investigated. Cassava grits were obtained by peeling, washing, cutting (5.5 cm thickness in cubes), soaking (72 h, 28±2 °C), dewatering, roasting (120 °C, 20 min), sieving and milling. Roasted AYB flour was...

The effect of African Yam Bean (AYB) flour substitution on the nutritional, functional and pasting properties of yellow root cassava grits was investigated. Cassava grits were obtained by peeling, washing, cutting (5.5 cm thickness in cubes), soaking (72 h, 28±2 °C), dewatering, roasting (120 °C, 20 min), sieving and milling. Roasted AYB flour was...

This study investigated the amino acid composition, phytochemicals, and antioxidant activities of cookies prepared from blends of orange-fleshed sweet potato and Pleurotus tuber-regium sclerotium. Most of the amino acids of the cookies showed higher values than their corresponding flours. The highest contents of tannins, oxalate, and hydrogen cyani...

Plantain is a popular dietary staple in Central and West African countries due to its versatility and excellent nutritional value. Mature unripe plantain finger is usually processed into dried chips by processors using open sun-drying method to reduce the moisture content and extends its shelf life, but without controlling the unit operations that...

The overdependence on refined wheat flour in food processing has called for a critical need to search for alternatives in snack production. Fonio is a nutritious, gluten free cereal with a low glycemic index. Defatted coconut flour is low in calorie and rich in fiber. This work therefore, evaluated the quality of cookies produced from blend of foni...

Purpose The purpose of this study is to compare food consumption and dietary diversity in smallholder cassava value chain households (CVCHs) and non-cassava value chain households (non-CVCHs). Design/methodology/approach A total of 572 rural households were selected using multi-stage sampling from Oyo and Kwara states, Southwest Nigeria. Socio-dem...

In an attempt to increase the shelf life of banana for some days prior to processing and also enhance the nutritional quality of banana, two banana cultivars (Musa acuminata and Musa sapientus) were stored using three different storage media (banana leaves, fabric cloths and a clay pot). banana bunches were cut into fingers and differently wrapped...

This study investigated the suitability of Orange Fleshed Sweet Potato (OFSP) and sclerotium of Pleurotus tubberegium in the production of cookies. Cookies were prepared from the blends of OFSP and sclerotium in varying proportions of 100:0, 90:20, 80:20, 70:30 and 0:100, respectively while wheat flour (100%) was used as control. The proximate comp...

This study evaluated the effect of autoclaving process on the production of resistant starch (RS) from cassava starch. RS was prepared by debranching, autoclaving and storage of cassava starch from two Nigeria varieties (TMS 30572 and TMS 98/0581). Starch suspensions were prepared with different starch water ratios (1:1; 1:3; and 1:5), debranched w...

In this study, resistant starch (RS), type 3, was prepared by debranching, steam cooking and storage of cassava native starch obtained from two Nigeria varieties (TMS 30572 and 98/0581). The native starch samples were debranched with isoamylase enzyme, steam cooked both at atmospheric and high pressure (15 psi) and stored under refrigeration (5–7°C...

Simplex Centroid Design (SCD) was employed to optimise the mixing of petroleum ether, n-hexane, methanol and ethanol for the extraction of oil (PLO) from Pitanga (Eugenia Uniflora L) leaves, via Soxhlet extraction. Highest yield (54%) of PLO was obtained with 100% ethanol and lowest yield (16%) from the mixture of methanol (33.3 %)/hexane (33.3 %)/...

Mineral profile and some selected components of three cultivars of onion (Allium cepa L.) (Dan Zaria, red creole and white creole) bulb were compared with garlic (Allium sativum L.) clove. This was pertinent to establish their potentials in ensuring adequate nutrition and food security. Simultaneous multi-element analysis was done by inductively co...

Purpose – It is very pertinent to determine the nutritional value of indigenous leafy-vegetables to establish their potentials in ensuring adequate nutrition and food security. One of the ways to promote fresh produce is through nutritional information. The paper aims to discuss these issues. Design/methodology/approach – Simultaneous multi-elemen...

The optimum bleaching parameters (clay dose and bleaching time) for palm kernel oil was determined using alkaline activated clay locally sourced in Nigerian. Activation was carried out using NaOH and KOH. The raw and activated clay samples were characterized using XRD and XRF. Bleached oil was analyzed for % colour reduction (%CR) and percentage fr...

This study investigated the effect of maturity on the some antinutritional factors of Sesamum radiatum leaves. Sesamum radiatum seeds were sown on an unfertilized land and the leaves were harvested on weekly basis from the fourth to the tenth week after planting (WAP) when s enenescence has started setting in. Phytate, tannin and oxalate of the pla...

Soups have ingredients that are similar to Paleolithic diets. They have potential to provide high unsaturated fatty acids, high ω 3/ω 6 ratio of fatty acids, fiber, phytochemical and proteins. Mushroom with its array of health benefits is underutilized in developing countries like Nigeria. In order to popularize and promote its consumption, this re...

Soups have ingredients that are similar to Paleolithic diets. They have potential to provide high unsaturated fatty acids, high ω 3/ω 6 ratio of fatty acids, fiber, phytochemical and proteins. Mushroom with its array of health benefits is underutilized in developing countries like Nigeria. In order to popularize and promote its consumption, this re...

Purpose The aim of the study is to compare the effect of steaming method and time on the physico‐chemical properties of underutilized Dioscorea dumetorum with three more commonly consumed Dioscorea rotundata, Dioscorea cayenensis and Dioscorea alata. Design/methodology/approach Raw and pre‐gelatinized flour were produced from the yam species. Pre‐...

Cassava chips (7% moisture level) produced from cassava root (IITA 94/0561) was stored for 6 months in high density polyethylene bag. Stored chips were coarse milled, rehydrated to 62.51% and seeded with fresh cassava mash (FCM) at levels of 5%, 10% and 20%. The resulting mash was fermented for 72 hr, with pH monitored every 24 hr, and processed to...

This study investigated the effect of maturity on the nutrients of Sesamum radiatum leaves. Sesamum radiatum seeds were sown on an unfertilized land and the leaves were harvested on weekly basis from the fourth to the tenth week after planting (WAP) when senenescence has started setting in. The moisture, protein, fat, crude fibre, ash, and nitrogen...

Purpose – The aim of the study is to compare the effect of steaming method and time on the physico-chemical properties of underutilized Dioscorea dumetorum with three more commonly consumed Dioscorea rotundata, Dioscorea cayenensis and Dioscorea alata. Design/methodology/approach – Raw and pre-gelatinized flour were produced from the yam species....

In this study, the effect of stage of maturity and storage time of yam tubers on polyphenoloxidase (PPO) activity and rate of browning of tuber parenchyma were investigated. Five Nigerian traditional varieties of Dioscorea rotundata were evaluated during the vegetative cycle. Final harvesting was done when foliage senescence was observed, analyses...

Raw and pre-gelatinized flour samples were produced from four yam species, which were D. dumetorum, D. alata, D. rotundata and D. cayenensis. Pre-gelatinization was done by steaming diced yam cubes in autoclave (68,950 Nm-2) for 5 min and in Barlet steamer (100±5oC)for 10, 20 and 30 min. Raw and pre-gelatinized flour samples were analyzed for colou...

Purpose – This study aimed at the potential use of ginger‐flavoured soy‐cassava flour to produce high‐protein biscuits. Design/methodology/approach – Preparation of biscuit was done using soy‐cassava flour blends (0:100, 20:80, 30:70 and 40:60 w/w). Biscuit was also prepared from 100 per cent wheat flour to serve as control. Findings – Chemical a...

Whole small tubers and setts from 15 genotypes of white yam (Dioscorea rotundata) at their post-dormant stage were planted at the beginning of the rainy season in 2003 and 2004. Harvesting was done at monthly intervals from three months after vine emergence (MAVE) till when there was senescence of foliage. Dry matter, sugar and starch contents of b...

Consumer interest in dietary fiber has continued to increase as more information about its potential impact on health has become available. Among the underutilized crops in Nigeria is tigernut which could find useful application in baking industry because of its high level of dietary fibre and other inherent properties. This study therefore aimed...

Effect of time of harvest of yam tubers on selected food quality characteristics was investigated to determine when yam tuber is due for harvesting. Setts from five land race varieties of white yam (Dioscorea rotundata) at their post-dormant stage were planted at the beginning of the rainy season in 2003 at the International Institute of Tropical A...

Maize ogi was supplemented with 10 and 20% toasted and untoasted okra meals. Yields and chemical composition of ogi, and okra meal, and ogi substituted with okra meal were determined. Brabender paste properties of ogi and ogi substituted with okra meal mixtures were determined. Sensory acceptability of cooked colored and flavored ogi pastes was det...