Journal of Food, Agriculture and Environment

Effect of roasting on the chemical composition of coconut (Cocos nucifera) seed flour and oil

Author(s):

I. Adekunle Amoo

Recieved Date: 2004-06-11, Accepted Date: 2004-10-28

Abstract:

Freshly harvested coconut was dehusked, grated, roasted, milled and subjected to proximate and mineral analysis using standard methods. The physicochemical properties of oil extracted from it were also determined. Raw coconut seed meal and oil served as control. The following respective percentage proximate values were found for raw and roasted coconut seed flour: total ash 1.71 and 1.86, moisture content 9.71 and 5.19, crude fibre 4.22 and 6.78, crude protein 14.13 and 12.48, crude fat 47.19 and 39.83 and carbohydrate 23.06 and 33.62. The mineral composition (mg/kg) of the raw and roasted coconut seed meal was as follows: sodium 32.9 and 49.3, potassium 228.8 and 515.7, calcium 92 and 104.9, magnesium 178.1 and 436.2, iron 37.9 and 67.8, zinc 43.5 and 119.7, manganese 50.0 and 81.8, phosphorus 184.2 and 750.0. The physicochemical properties of oil from raw and roasted coconut seed gave the following respective values: relative density 0.8193 and 0.8521, refractive index 1.444 and 1.442, acid value 3.90 and 2.95, saponification value 5.43 and 25.52, iodine value 12.11 and 20.01, peroxide value 0.46 and 0.61, free fatty acid 0.20 and 0.16, flash point 6°C and 12°C. The colour of oil from the roasted seed meal was brown while that of raw one was colourless and the odour and taste were pleasant. Roasting significantly influenced the nutrient composition of the meal as well as the physicochemical properties of oil extracted.

Keywords:

Coconut, chemical properties, coconut oil, nutrient

---

Journal: Journal of Food, Agriculture and Environment
Year: 2004
Volume: 2
Issue: 3&4
Category: Food and Health
Pages: 18-20

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :