Abstract: This study was carried out to determine yield, proximate and mineral compositions of leaf protein concentrates, leaf meal and bagasse obtained from pawpaw leaves in Benin City, Nigeria. Pawpaw leaves were freshly harvested and processed to leaf protein concentrates, leaf meal and bagasse. Their yield and physical properties were determined. The leaf protein concentrates, leaf meal and bagasse were analyzed for their proximate and mineral compositions using standard analytical procedures. The proximate and mineral compositions were significantly (p<0.05) different among the major leaf fractions. The yield of the leaf protein concentrates, leaf meal and leaf bagasse were 7.12±1.75, 59.54±5.42 and 23.62±4.09 respectively. The proximate analysis of pawpaw leaf protein concentrates revealed the dry matter to be 82.50±0.71%, crude protein 39.50±071%, crude fibre 2.60±0.14%, ether extract 4.15±0.07%, ash 8.80±0.42% and nitrogen free extract 27.20±1.40%. The dry matter, crude protein, crude fibre, ether extract, ash and nitrogen free extracts for pawpaw leaf meal were 81.20±0.28%, 20.95±0.50%, 8.65±0.78%, 2.85±0.07%, 6.85±0.07 and 41.75±0.92% respectively. The pawpaw leaf bagasse had relatively high crude fibre (32.21±2.01%) but lower crude protein (17.65±1.03%) and Ash content (5.40±0.27%). The Calcium (16.95±0.50mg/100g) and Iron (496.7±6.90mg/kg) content of pawpaw leaf protein concentrate were significantly (p<0.05) higher than the Calcium (10.85±0.07mg/100g) and Iron (266.7±5.20mg/kg) content of pawpaw leaf meal. Leaf protein concentrate, bagasse and leaf meal obtained from pawpaw leaves have the potential of being used as livestock feed ingredient.
Keywords: Pawpaw, Leaf Protein Concentrate, Leaf Meal, Bagasse, Yield, Proximate, Mineral.
Title: YIELD, PROXIMATE AND MINERAL COMPOSITIONS OF PAWPAW (Carica papaya L.) LEAF PROTEIN CONCENTRATES, LEAF MEAL AND BAGASSE
Author: Agbonghae, W. O, Nwokoro, S. O.
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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