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Content of antinutrients and in vitro protein digestibility of the African yambean, pigeon and cowpea.
Plant Foods Hum Nutr. 1995 Oct; 48(3):225-33.PF

Abstract

The protein, trypsin inhibitor (TI), tannin, phytate, phytic acid phosphorus and in vitro protein digestibility (IVPD) of cultivars of the African yambean (Sphenostylis stenocarpa) - AYB, pigeon pea (Cajanus cajan) - PP and cowpea (Vigna unguiculata) - CP were determined. The protein content of CP (24-28.0%) was higher than those of PP (21-22.5%) and AYB (21-22.5%). The cream and speckled AYB contained more TI (30.9 and 25.3 mg/g) than PP (7.5-14.1 mg/g) and CP (9.8-20.5 mg/g). Apart from the white CP cultivar, they contained more tannin (1.24-1.42 mg/g) than PP (0.14-0.97 mg/g) and AYB (0.71-1.17 mg/g). Phytate was lowest in the AYB (6.30-7.49 mg/g) than PP (8.31-11.31 mg/g) and CP (8.40-9.92 mg/g). Phytic acid contributed 67-74% of the phosphorous in the AYB, 66-75% in PP and 54-59% in CP. The IVPD of the AYB (73.3 + or - 0.7%) was significantly lower (p <0.05) than those of PP (76.34 + or - 0.2%) and CP (77.8 + or - 0.4%). There was a significant negative correlation between TI and IVPD (r = -0.63, p<0.05). There was no significant correlation between IVPD and phytate and tannin contents. There was a positive correlation between protein content and IVPD (r = 0.69**) for the legumes under study. These legumes may pose no serious problems to populations consuming them especially when heat treatment is applied before consumption.

Authors+Show Affiliations

Ene-Obong HN
Department of Home Science and Nutrition, University of Nigeria, Nigeria.

MeSH

AfricaDietary ProteinsDigestionFabaceaeLinear ModelsNigeriaPhosphorusPhytic AcidPlant ProteinsPlants, MedicinalTanninsTrypsin Inhibitors

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

8833429

Citation

Ene-Obong, H N.. "Content of Antinutrients and in Vitro Protein Digestibility of the African Yambean, Pigeon and Cowpea." Plant Foods for Human Nutrition (Dordrecht, Netherlands), vol. 48, no. 3, 1995, pp. 225-33.
Ene-Obong HN. Content of antinutrients and in vitro protein digestibility of the African yambean, pigeon and cowpea. Plant Foods Hum Nutr. 1995;48(3):225-33.
Ene-Obong, H. N. (1995). Content of antinutrients and in vitro protein digestibility of the African yambean, pigeon and cowpea. Plant Foods for Human Nutrition (Dordrecht, Netherlands), 48(3), 225-33.
Ene-Obong HN. Content of Antinutrients and in Vitro Protein Digestibility of the African Yambean, Pigeon and Cowpea. Plant Foods Hum Nutr. 1995;48(3):225-33. PubMed PMID: 8833429.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Content of antinutrients and in vitro protein digestibility of the African yambean, pigeon and cowpea. A1 - Ene-Obong,H N, PY - 1995/10/1/pubmed PY - 1995/10/1/medline PY - 1995/10/1/entrez SP - 225 EP - 33 JF - Plant foods for human nutrition (Dordrecht, Netherlands) JO - Plant Foods Hum Nutr VL - 48 IS - 3 N2 - The protein, trypsin inhibitor (TI), tannin, phytate, phytic acid phosphorus and in vitro protein digestibility (IVPD) of cultivars of the African yambean (Sphenostylis stenocarpa) - AYB, pigeon pea (Cajanus cajan) - PP and cowpea (Vigna unguiculata) - CP were determined. The protein content of CP (24-28.0%) was higher than those of PP (21-22.5%) and AYB (21-22.5%). The cream and speckled AYB contained more TI (30.9 and 25.3 mg/g) than PP (7.5-14.1 mg/g) and CP (9.8-20.5 mg/g). Apart from the white CP cultivar, they contained more tannin (1.24-1.42 mg/g) than PP (0.14-0.97 mg/g) and AYB (0.71-1.17 mg/g). Phytate was lowest in the AYB (6.30-7.49 mg/g) than PP (8.31-11.31 mg/g) and CP (8.40-9.92 mg/g). Phytic acid contributed 67-74% of the phosphorous in the AYB, 66-75% in PP and 54-59% in CP. The IVPD of the AYB (73.3 + or - 0.7%) was significantly lower (p <0.05) than those of PP (76.34 + or - 0.2%) and CP (77.8 + or - 0.4%). There was a significant negative correlation between TI and IVPD (r = -0.63, p<0.05). There was no significant correlation between IVPD and phytate and tannin contents. There was a positive correlation between protein content and IVPD (r = 0.69**) for the legumes under study. These legumes may pose no serious problems to populations consuming them especially when heat treatment is applied before consumption. SN - 0921-9668 UR - https://www.unboundmedicine.com/medline/citation/8833429/Content_of_antinutrients_and_in_vitro_protein_digestibility_of_the_African_yambean_pigeon_and_cowpea_ DB - PRIME DP - Unbound Medicine ER -