Life Sci J Pak 2019; 1(01):24-33 Mahmood et al, 2019
24
REVIEW
Life Science Journal of Pakistan
Comparative assessment of biomedical and nutritional status of dry fruits; A review
Zahed Mahmood
1
, Aqsa Mashooq
1
, Sarmad Ahmad Qamar
2
, Naveed Munir
1,3
, Muhammad Jahangeer
1*
, Ghazia Fatima
1
, Shoukat
Hussain
1
, Ayesha Zulfiqar
1
.
1
Clinical Biochemistry Lab, Department of Biochemistry, Government College University Faisalabad-38000, Pakistan.
2
Industrial Biotechnology Lab, Department of Biochemistry, University of Agriculture, Faisalabad-38040, Pakistan.
3
College of Allied Health Professionals, Directorate of Medical Sciences, Government College University Faisalabad-38000, Pakistan.
*Corresponding Author
Muhammad Jahangeer (rajahangeer@gcuf.edu.pk)
Research Associate, Department of Biochemistry, GC University, Faisalabad
Abstract
Nuts as dry fruits are nutrients rich foods that have high amount of phytochemicals like unsaturated fatty acids,
proteins, fibers, carbohydrates, flavonoides, phytosteroides and antioxidants. Other nutritional components that are also
present in nuts include vitamins, minerals, and phenolic compounds. Nuts have been proposed as an important component
of optimal diets for reducing the risk of chronic heart disease. Anti-inflammatory properties present in nuts, maintain the
weight and increase insulin sensitivity. Phytosterols present in nuts have a role in regulating the blood cholesterol level.
The essential elements omega 3 and omega 6 fatty acids are also present in walnut and these elements have a more
beneficial effect on heart brain and neurotransmitters. Polyunsaturated fatty acids like linolenic acid and monounsaturated
fatty acid are also present in nuts which have a potential role in the human body to maintain the low-density lipoproteins
and high-density lipoproteins for proper arterial function. Both pine nuts and cashew nuts have antioxidant potential due
to the presence of a wide range of phytoconstituents, so this review article has been compiled to summarize the health
benefits of dry fruits, phytochemical constituents and their mechanism of actions.
Keywords: optimal diet, vitamins, minerals, phenolic compounds, phytosterols, antioxidants
Life Sci J Pak 2019; 1(01):24-33. doi:10
(Received 04 April 2019 – Accepted 15 April 2019- Revised 29 April 2019)
Copyright © 2019 Mahmood et al. This is an open-access article distributed under the Creative Commons Attribution License, which
permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Introduction
Fruits and vegetables are natural elements
having antioxidant properties and help to decrease
the effect of free radical on the body (1, 2). Free
radicals have more harmful effects on the body such
as DNA mutation, lipid peroxidation and cross-
linking proteins which could be prevented by
antioxidation. Nuts as dry fruits are nutrient-rich
foods that contain rich amount of unsaturated fatty
acid and other compound likes protein, fiber,
carbohydrate and antioxidants properties (3).
Nutritional compounds that are also present in nuts
are vitamins (e.g. tocopherols, niacin, folic acid, and
vitamin B6), minerals (e.g., magnesium, potassium,
calcium, iron) and phenolic compounds (4). Some
bioactive components of nuts i.e. Phytosterols,
selenium, folic acid, tocopherols, phenolic
compounds, and magnesium, are reported to have
antioxidant, anticarcinogenic or anti-inflammatory
properties (4). Anti-oxidation properties play an
important role to preserve the chronic disease and
reduce the risk of cancer. It is described that trend of
obesity is increasing which might be the major cause
of cardiovascular diseases and type 2 diabetes
mellitus, could be prevented by fruits and
vegetables (5).
Phytosterols are present in nuts, fruits and
vegetable, and their structure are related to the
cholesterol played role in maintaining of blood
cholesterol level and it was reported that
consumption of 2 g of phytosterols per day reduced
LDL cholesterol level by 10%, and are considered to
protect cardiovascular complications. Nuts
consumption effect on the serum lipid and decreases
the low-density lipoprotein and improves the ratio of
HDL (6). G-tocopherol and vitamin E are also
present in all nuts which also have cardioprotective
roles as well as to reduce the risk of heart diseases,
hypertension, cancer and Alzheimer’s disease (7).
Omega 3 and omega 6 fatty acids are
present in walnut and these elements have a more
favorable effect on heart, brain, and
neurotransmitters. Walnut is the rich source of
polyunsaturated fatty acids, basically linolenic acid