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Influence of drying and cooking methods on the nutritional value of four native mucilaginous vegetables consumed in Benin

Research Paper | December 1, 2019

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Léandre Gandji, Inès Déléké Koko, C. Evariste S. Mitchikpe, ET Julien G. Djego

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J. Bio. Env. Sci.15( 6), 73-81, December 2019


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Native vegetables are rich in macronutrients and bioactive micronutrients, including antioxidants. Post-harvest treatments and different ways of cooking vegetables affect their nutritional and functional qualities. The impact of drying and cooking methods on the nutritional value and antioxidant properties of Adansonia digitata L., Bombax brevicuspe Sprague, Ceiba pentandra (L.) Gaertn leaves and Grewia venusta Fresen flowers was investigated. The protein, lipid, fibre, mineral and polyphenol contents of vegetables were analysed using reference methods as per AOAC (Association of Official Analytical Chemists). The results show that shade-dried during harmattan increases the protein (27.63%) and lipid (77.66%) contents of A. digitata, the protein (19.25%) and fibre (30.55%) contents of B. brevicuspe, the fibre (24.59%) contents of G. venusta and decreases the lipid (-2.90%) contents of C. pentandra. Cooking results in higher losses of iron (-16.26% to -71.96%), calcium (-52.09% to -78.13%) and vitamin C (-44.78% to -75.77%). Cooking also affects the antioxidant activity of the four vegetables, resulting in a decrease in polyphenol levels (-74.48%) of A. digitata, (-87.56%) of B. brevicuspe, (-80.03%) of C. pentandra and (-94.26%) of G. venusta. To ensure that the quality and quantity of nutrients in these vegetables are preserved, it is important to review traditional drying and cooking methods.


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Influence of drying and cooking methods on the nutritional value of four native mucilaginous vegetables consumed in Benin

Abioye VF, Adejuyitan JA, Idowu CF. 2014. Effects of different drying methods on the nutritional and quality attributes of baobab leaves (Adansonia digitata). Agriculture and Biology Journal of North America 5(3), 104-108.

Adak N, Heybeli N, Ertekin C. 2017. “Infrared drying of strawberry,” Food Chemistry 219, 109-116.

Adeniyi SA, Ehiagbonare JE, Nwangwu SCO. 2012. Nutritional evaluation of somestaple leafy vegetables in Southern Nigeria. International Journal of Agricultural and Food Science 2(2), 37-43.

Adjatin A, Dansi A, Badoussi E, Sanoussi AF, Dansi M, Azokpota P, Ahissou H, Akouegninou A, Akpagana K, Sanni A. 2013. Proximate, mineral and vitamin C composition of vegetable Gbolo [Crassocephalum rubens (Juss. ex Jacq.) S. Moore and C. crepidioides (Benth.) S. Moore] in Benin. International Journal of Biological and Chemical Sciences 7 (1), 319-331.

Ali A. 2009. Proximate and mineral composition of the marchubeh (Asparagus officinalis). World Dairy Food Sciences 4, 142-149.

Alinor IJ, Oze R. 2011. Chemical evaluation of the nutritive value of Pentaclethra macrophyllabenth (African Oil Bean) Seeds. Pakistan Journal of Nutrition 10(4), 355-359.

AOAC. 1990. Official Methods of Analysis, 15th edn., Association of Official Analytical Chemists, Washington, DC, USA.

AOAC. 2000. Official Method of Analysis, 19th edn., Association of Official Analytical Chemist, Washington, DC, USA.

Chadare FJ, Hooiveld GJEJ, Linnemann AR, Nout MJR, Hounhouigan DJ. 2014. Effect of cooking on in vitro solubility of minerals and carotenoids in adansonia digitate leaves. Annales des sciences agronomiques 18(2), 1-19.

Chege P, Kuria E, Kimiywe J, Nyambaka H. 2014. Changes in nutrient content for β-carotene, iron and zinc in solar dried and stored Amaranthus cruentus vegetables. International Journal of Agriculture Innovations and Research 3(3), 880-882.

Ehilé SE, Kouassi NK, N’Dri DY, Adam KC, Amani GN. 2017. Proximate composition of five varieties of spontaneous leafy vegetables regularly consumed in Côte D’Ivoire Areas. International Journal of Current Microbiology and Applied Sciences 6 (12), 3536-3542.

Ejoh AR, Tchouanguep MF, Fokou E. 1996. Nutrient composition of the leaves and flowers of Colocasia esculenta and the fruits of Solanum melongena. Plant Foods for Human Nutrition 49, 107-112.

Elegbede JA. 1998. Legumes. Nutritional quality of plant foods. In: Post Harvest Research Unit. Osagie AU, Eka, QU (Eds).

FAO. 2004. Human vitamin and mineral requirements. FAO Ed, 361 p.

Habte TY, Krawinkel MB. 2017. Metaphysical Analysis of the Nutritional and Therapeutic Value of Baobab (Adansonia Digitata L.). Journal of Nutrition and Health Sciences 5(1), 101. DOI: 10.15744/2393-9060.5.101.

Hossain A, Khatun MA, Islam M, Huque R. 2017. Enhancement of Antioxidant Quality of Green Leafy Vegetables upon Different Cooking Method. Preventive Nutrition and Food Science 22(3), 216-222.

James A, Matemu A. 2016. Solar-drying of vegetables for micronutrients retention and product diversification. American Journal of Research Communication 4(8), 1-13

Khadhri A, El Mokni R et Smiti S. 2013. Composés phénoliques et activités antioxydantes de deux extraits de chardon à glu: Atractylis gummifera. Revue Social Science National de Tunisie 39, 44-52.

Lintas C, Cappelloni M. 1998. Dietary fiber, resistant starch and in vitro starch digestibility of cereal meals. Food Science & Nutrition 42, 117-124.

Mampholo BM, Sivakumar D, Thompson AK. 2015. Maintaining overall quality of fresh traditional leafy vegetables of Southern African during the postharvest chain, Food Reviews International. DOI: 10.1080/87559129.2015.1094817.

Misra S, Misra MK. 2014. Nutritional evaluation of some leafy vegetable used by the tribal and rural people of south Odisha, Indian Journal of Natural Products and Resources 4(1), 23-28.

Moyo SM, Mavumengwana V, Kayitesi E. 2017. Effects of Cooking and Drying on Phenolic Compounds and Antioxidant Activity of African Green Leafy Vegetables, Food Reviews International, DOI: 10.1080/87559129.2017.1289384.

Nangula PU, Andre O, Kwaku GD, Megan JB, Mieke F. 2010. Nutritional value of leafy vegetables of sub-Saharan Africa and their potential contribution to human health. A review Journal of Food Composition and Analysis 23, 499-509.

Ogbaga CC, Nuruddeen FA, Alonge OO, Nwagbara OF. 2017. Phytochemical, Elemental and Proximate Analyses of Stored, Sun-Dried and Shade-Dried Baobab (Adansonia digitata) Leaves. Preprints, DOI:10.20944/preprints201711.0148.v1.

Osborne DR, Voogt P. 1978. The Analysis of Nutrients in Foods London Academic Press. 6th Edn 239-245.

Oulaï PD, Zoué LT, Bedikou ME, Megnanou R, Niamke SL. 2014. Impact of cooking on nutritive and antioxidant characteristics of leafy vegetables consumed in northern côte d’ivoire. International Journal of Plant, Animal and Environmental Sciences 4(3), 576-585.

Oulaï PD, Zoué LT, Niamké SL. 2016. Nutritive and Antioxidant properties of Shade Dried Leafy Vegetables Consumed in Northern Côte d’Ivoire. Turkish Journal of Agriculture – Food Science and Technology 4(2), 84-91.

Pathare PB, Umezuruike L, Opara, Al-Said FA. 2013. Colour measurement and analysis in fresh and processed foods: A review. Food Bioprocess Technology 6, 36-60.

Pongracz G, Weiser H, Matzinger D. 1971. Tocopherols-Antioxydant. Fat Science Technology 97, 90-104.

Prabhu S, Barrett DM. 2009. Effects of storage condition and domestic cooking on the quality and nutrient content of African leafy vegetables (Cassia tora and Corchorus tridens). Journal of the Science of Food and Agriculture 89(10), 1709-21.

Rahul J, Jain MK, Singh SP, Kamal RK, Anuradha, Naz A, Gupta AK, Mrityunjay SK. 2015. Adansonia digitata L. (baobab): a review of traditional information and taxonomic description. Asian Pacific Journal of Tropical Biomedicine 5(1), 79-84.

Rickman JC, Barrett DM, Bruhn CM. 2007. Nutritional comparison of fresh, frozen and canned fruits and vegetables. Part 1. Vitamins C and B and phenolic compounds. Journal of the Science of Food and Agriculture 87, 930-944.

Rude RK, Singer FR, Gruber HE. 2009. Skeletal and hormonal effects of magnesium deficiency. Journal of the American College of Nutrition 28, 131-141.

Saxena M, Saxena J, Pradhan A. 2012. Flavonoids and phenolic acids as antioxidants in plants and human health. International Journal of Pharmaceutical Sciences Review and Research 16(2), 130-4.

Senga Kitumbe P, Opota Onya D, Tamba Vemba A, Tona Lutete G, Kambu Kabangu O, Covaci A, Apers S, Pieters L, Cimanga K. 2013. Chemical composition and nutritive value study of the seed oil of Adenanthera pavonina L. (Fabaceae) growing in Democratic Republic of Congo. International journal of Pharmtech Research 5(1), 205-216.

Singh RR, Harshal A. 2016. Effects of Cooking on Content of Vitamin C in Green Leafy Vegetables. Scholars Journal of Agriculture and Veterinary Sciences 3(6), 416-423.

Singleton VL Orthofer R, Lamuela-Raventós RM. 1999. Analysis of total phenols and other oxidation substrates and antioxidants by means of Folin-Ciocalteu reagent. Methods in Enzymology 299, 152-178.

Svanberg SSM, Nyman EMG, Andersson L, Nilsson R. 1997. Effects of boiling and storage on dietary fiber and digestible carbohydrates in various cultivars of carrots. Journal of the Science of Food and Agriculture 73, 245-254.

Yamaguchi T, Mizobuchi T, Kajinawa H, Miyabe F, Terao J, Takamura H, Matoba T. 2001. Radical-scavenging activity of vegetables and the effect of cooking on their activity. Food Science and Technology Research 7, 250-257.