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FOOD MADE OF DEHYDRATED GREEN PLANTAIN AND YAM FLOUR
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Pounded Yam
AFRICAN SWALLOW
PREPARATION OF HOMELANDS PLANTAIN FLOUR
YAM
From time immemorial, human beings have been reliant on several plants, roots and tubers mainly as a source of food and herbal remedy for tackling diseases. This has drawn them towards differentiating between the poisonous and the non-poisonous ones in other to identify the edible or non-edible ones.
Moreover, roots and tubers are the major food crops especially in the tropical and subtropical region where they are used for human consumption and survival. One of these numerous roots and tubers that has gained popularity in human’s food crop is yam. Yam belongs to the family of Dioscoreaceae and the genus of Dioscorea. It is among the oldest tuber crop that contributes to food security and consumed either as a roasted, cooked or fried vegetable.

Yam (Dioscorea) is a starchy, annual, herbaceous, climbing vine with tuberous roots. It is a monocotyledon that is originally from Africa, Asia and the Caribbean before spreading to other parts of the world. There are edible and non-edible yams and while the edible ones are for consumption purposes, the non-edible ones are used mainly for medicinal purposes. Being an annual crop, yam can be harvested and stored for usage throughout the year.It has over six hundred species dispersed all over the world especially in the tropical and subtropical regions, however, only a few species are considered edible. Yam is the second most essential root crop in West Africa after cassava (Manihot esculenta Crantz) and potatoes with Nigeria being the main producer. Due to the acrid nature of yam, the tubers contain toxic substances that can irritate and inflame the throat and buccal cavity if consumed raw. As a result, it is cooked before consumption to avoid any sort of gastrointestinal problems, such as diarrhoea and vomiting.

Some species of yam include; Dioscorea togoensis, the Chinese yam (Dioscorea bulbifera), five-leaf yams (Dioscorea pentaphylla), yellow yam (Dioscorea cayenensis), aerial yam (Dioscorea bulbifera), Dioscorea dumetorum, Zanzibar yam (Dioscorea steriscus and Dioscorea sansibarensis), trifoliate yam (Dioscorea dumetorum), Dioscorea burkilliana, water yam (Dioscorea alata), Dioscorea praehensilis, Chinese yam (Dioscorea esculenta), white yam (Dioscorea rotundata), Dioscorea hirtiflora, Dioscorea bulbifera (bulbil and tuber), Dioscorea multiflora, water yam (Dioscorea alata). Dioscorea alata L. (Fam: Dioscoreaceae), which is locally known as kath aloo in Assam and popularly known as greater yam is a climbing perennial vines characterised by heart-shaped leaves. The tuber is edible and it makes a major staple food especially in Africa, Asia and South America.

Nutritional value of Yam
The main components of Dioscorea spp. are dioscin, dioscorin and saponins that are of great medicinal values. Yam is also a rich source of carbohydrate, energy (100% ), dietary fiber (16%), calcium (1%), vitamin C (28%), vitamin B-6 (15%), magnesium (5%), protein (3%), iron (2%), vitamin A (2%). Yam is also a rich source of riboflavin, ascorbic acid, phosphorous, ascorbic acid, thiamine, selenium, beta-carotene, zinc and niacin.

Edible yams can be cooked, fried, boiled, roasted or pounded before eating. Yam can be processed into yam flour, which is used for making semolina or poundo. Poundo or semolina is often served with delicious soups such as oha soup, corchorus soup, bitter leaf soup , egusi soup and pounded yam etc.
Treatment of Indigestion
Studies reveal that the Chinese people use certain species of yam as a herbal medicine for treating indigestion and intestinal colic. The high dietary fibre content of yam makes it capable of softening the stools thereby aiding easy eradication of waste products from the body.
Yam can be used for alleviating diverticulitis, which is a health condition caused as a result of the inflammation of a diverticulum particularly in the colon, causing pain and poor bowel functioning. Studies reveal that yam can be used for soothing dysmenorrhoea, which is also known as painful menstruation that often involves abdominal cramps. Yam also helps to prevent ovarian and uterine pain.

Studies reveal that wild, non-edible yams can be used for treating hypercholesterolaemia, which is a health condition caused as a result of the excessive amount of cholesterol in the bloodstream. Studies reveal that consuming Dioscorea bellophylla helps to reduce the blood cholesterol thus minimizing the onset of heart attacks.

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