Science Letters

Effect of rootstock on proximate analysis of kinnow mandarin peel

Muhammad Asim 2*, Tehseen Ashraf 2, Ehsan-ul-Haque 1, Muhammad Shakeel Hanif 1, Shabbir Ahmed 1, Akbar Hayat 1, Arshad Mehmood 3, Saqib Jabbar 3

1 Citrus Research Institute, Sargodha-Pakistan

2 Department of Horticulture, University College of Agriculture, University of Sargodha-Pakistan

3 Institute of Food Science and Nutrition, University of Sargodha-Pakistan

Abstract

Increased cost for disposal of citrus waste has increased interest in the utilization of citrus crop for value added products and byproducts. Kinnow fruit in Pakistan is an underused source for value addition particularly its peel and pulp wasted after juicing. In the present study, the effect of citrumelo 1452, citrumelo 4475, yumacitrange, volkamariana, rough lemon, mithi, troyercitrange, and brazillian sour orange rootstocks on the quality parameters of kinnow peel was investigated. Kinnow peel analyzed for physico-chemical composition showed that fruit peel if Kinnow grafted on rough lemon rootstock had the highest contents of crude fat (1.61%), crude fiber (6.75%) and crude protein (5.61%), while with respect to moisture contents, rough lemon (74.13%) showed the top position with citrumelo 4475 (73.82%) among the tested rootstocks. Peel from mithi rootstock proved the second richest source of crude fat (1.525%) and crude fiber (6.82%); while with respect to crude protein, volkamariana stood second with 5.47% crude fat. Comparative study of proximate analysis of fruit peel from eight rootstocks in the alkaline soil conditions of Punjab Province proved the mithi a promising rootstock for kinnow after rough lemon.

Keywords: Kinnow, physico-chemical, roots stocks, rough lemon, volkamariana.

Received February 20, 2015 Revised April 30 2015 Published online first May 02, 2015

*Corresponding author Muhammad Asim Email asimcri@gmail.com