Effect of Processing on Energy Values, Nutrient and Anti-nutrient Components of Wild Cocoyam [Colocasia esculenta (L.) Schott] Corm

Olajide, R.; Akinsoyinu, A. O.; Babayemi, O. J.; Omojola, A. B.; Abu, Alexander; Afolabi, KD

doi:10.3923/pjn.2011.29.34

Cited by 41 publications

(49 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peel component has the highest concentrations of cyanogenic glycosides in cassava (Table 3). In cocoyam tubers, Abdulrashid and Agwunobi [11], Olajide, et al [13] reported wide variat ion (2.10 -17.13mg/ 100g) in the level of these undesirable substances. Hydrolysis of cyanogenic glycosides releases hydrogen cyanide (HCN), which inhib it several enzy me systems, depress growth through interference with certain essential amino acids and utilizat ion of associated nutrients [2,21].…”

Section: Antinutritional Factorsmentioning

confidence: 99%

“…The levels of cyanogenic glycosides and hydrogen cyanide are also reduced to safer limits by processing (peeling, slicing, boiling, fermentation) before consumption [27,28]. 13,19,20] Phytic acid, which is hexaphosphate of myo-inositol, is very common in the plant kingdom [29]. Phytic acid is the primary storage compound of phosphorus in plants, accounting for up to 80 per cent of the total phosphorus [30,31].…”

Section: Antinutritional Factorsmentioning

confidence: 99%

“…Phytic acid is the primary storage compound of phosphorus in plants, accounting for up to 80 per cent of the total phosphorus [30,31]. Phytic acid has been found in cassava root [32] and cocoyam tuber [13] up to levels of 62.4 and 1.75g/100g, respectively. Josefsen et al, [33] reported that the negatively charged phosphate in phytic acid strongly binds to metallic cations (e.g.…”

Section: Antinutritional Factorsmentioning

confidence: 99%

“…Deficiencies of phosphorus and nutritionally important minerals in monogastric animals can be a result of cations bound in the phytic acid salt and of low bioavailability of phosphorus [35,36] The plant oxalis, common ly known as wood sorrel, gave rise to o xalic acid, a strong, organic acid which has been found to be widely distributed in plants [37]. Up to 45.30g/100g has been found in cocoyam tuber [13]. Strong bonds are formed between o xalic acid and various other minerals, such as calcium, magnesium, sodiu m and potassium [38,39].…”

Section: Antinutritional Factorsmentioning

confidence: 99%

“…Up to 45.30g/100g has been found in cocoyam tuber [13]. Strong bonds are formed between o xalic acid and various other minerals, such as calcium, magnesium, sodiu m and potassium [38,39].…”

Section: Antinutritional Factorsmentioning

confidence: 99%

See 4 more Smart Citations

The Use of Cassava, Sweet Potato and Cocoyam, and Their By-Products by Non – Ruminants

Apata¹,

Babalola²

2012

FOOD

View full text Add to dashboard Cite

As the search for alternative sources of energy for non ruminants continues, this review was undertaken to examine the potential value of cassava (Manihot utilissima Pohl.), sweet potato (Ipomea batatas Poir.), cocoyam (Xanthosoma sagittifolium Schott.) and their by-products as dietary supplements for non ruminants. Studies on these roots and tubers showed that, on a dry-weight basis, contained 2.0 -7.9% crude protein, 0.3 -3.1% crude fib re and 72.4 -77.9% starch. The practical use of these roots and tubers in non ruminant feeds is generally low. Th is level of utilizat ion is attributed to the low protein and dry matter and the potentially to xic cyanogenic glycosides in fresh cassava and irritating substance in cocoyam. Processing techniques such as fermentation, soaking, boiling, ensiling and sun-drying are adopted to remove the deleterious substances, and effects on animals. The co mparable performance of pigs and poultry fed vary ing levels of roots and tubers and their by-products with those maintained on maize showed that they can be used as substitutes in non-ru minants diets at certain levels without detrimental effects. To achieve increase in the use of these root crops and their by-products for maize replacement in intensive non-ruminant production systems, adequate protein supplementation and proper processing are essential.

show abstract

Section: Antinutritional Factorsmentioning

confidence: 99%

Section: Antinutritional Factorsmentioning

confidence: 99%

Section: Antinutritional Factorsmentioning

confidence: 99%

Section: Antinutritional Factorsmentioning

confidence: 99%

“…Up to 45.30g/100g has been found in cocoyam tuber [13]. Strong bonds are formed between o xalic acid and various other minerals, such as calcium, magnesium, sodiu m and potassium [38,39].…”

Section: Antinutritional Factorsmentioning

confidence: 99%

See 3 more Smart Citations