Proximate Composition and Physicochemical Properties on the Seeds and Oil of Annona muricata grown in Congo-Brazzaville

Proximate composition and physicochemical analyses were carried out on the seed and extracted oil of Annona muricata. The results showed that the seed contained 7.7% moisture, 8.5% crude protein, 9.7% ash, 5.2% crude fiber, 40% fat and 34.1% carbohydrate. The seeds were found to be good sources of minerals. Potassium (357.14±1.84 mg/100 g) was the highest, followed in descending order by Calcium (149.1±2.10 mg/100g), Phosphorus (136.0 ±1.52mg/100g), Sodium (17.35±2.47 mg/100g), and Magnesium (12.57±1.42mg/100 g).The physical properties of the oil extracts showed the state to be liquid at room temperature. The oil was found to contain high levels of unsaturated fatty acids, especially oleic (up to 41.41%) and linoleic (up to 30.60%). Annona muricata oil can be classified in the oleic-linoleic acid group. The dominant saturated acid was palmitic (up to 20.33%). The oil extracts exhibited good physicochemical properties and could be useful as edible oils and for industrial applications.

[1]  C. Boelhouwer.  Trends in the chemistry and technology of lipids , 1983 .

[2]  I. Onimawo.  Proximate composition and selected physicochemical properties of the seed, pulp and oil of sour sop (Annona muricata) , 2002, Plant foods for human nutrition.

[3]  M. Enig,et al.  Nourishing Traditions: The Cookbook that Challenges Politically Correct Nutrition and the Diet Dictocrats , 1995 .

[4]  Y. Man,et al.  Thermal analysis of failed-batch palm oil by differential scanning calorimetry , 1995 .

[5]  M. Alajarin,et al.  General Methods , 2008 .

[6]  M. Gordon.  World oilseeds; chemistry, technology and utilization , 1993 .

[7]  A. Esin,et al.  RHEOLOGICAL CHARACTERIZATION OF TAHIN/PEKMEZ (SESAME PASTE/CONCENTRATED GRAPE JUICE) BLENDS , 2005 .

[8]  D. Guzmán de Peña,et al.  Modification of the method 1 AOAC (CB-method) for the detection of aflatoxins. , 1992, Bulletin of environmental contamination and toxicology.

[9]  F. D..  A Text-book of Plant Physiology , 1903, Nature.

[10]  Yeshajahu Pomeranz,et al.  Food analysis: theory and practice, , 1971 .

[11]  E. Russell.  Soil Conditions and Plant Growth@@@Soil Conditions and Plant Growth. , 1913 .

[12]  D. K. Salunkhe,et al.  World oilseeds: chemistry, technology, and utilization , 1992 .

[13]  M. Isman,et al.  Toxicity and antifeedant activity of crude seed extracts of Annona squamosa (Annonaceae) against lepidopteran pests and natural enemies , 2004 .

[14]  M. Linder,et al.  Solanum nigrum L. Seeds as an Alternative Source of Edible Lipids and Nutriment in Congo Brazzaville , 2007 .

[15]  L. Cocks,et al.  Laboratory handbook for oil and fat analysts , 1966 .

[16]  W. J. Dyer,et al.  A rapid method of total lipid extraction and purification. , 1959, Canadian journal of biochemistry and physiology.

[17]  D. G. Peña,et al.  Modification of the method 1 AOAC (CB-method) for the detection of aflatoxins , 1992 .

[18]  G. Bond.  Text-Book of Plant Physiology , 1953, Nature.

[19]  E. W. Russell,et al.  Soil Conditions and Plant Growth. , 1917 .