Oranges are one of the most popular fruits for eating out
hand and most important source of fresh juice having a distinctive flavour and
high amount of vitamin A B and C (Aye et al., 2012).
The orange fruit is a specialized type of berry known to the
botanists as hesperidia. It has a soft, pithy central axis surrounded by 10-15
segments containing pulp and juice. Enclosing the segments is a leathery
segment which contains juice that is sugary; several organic acids (chiefly
citric acid) many other components; which give it a distinctive flavour; and
high amounts of vitamins A, B and C. (Aye et al., 2012).
Oranges grow on evergreen trees of the family Rutaceae. The
trees grow to a height of about 30 feet (9m) and are symmetrical and upright.
The fruit varies in the number of seeds, from none to many. Orange is one of
the major source of vitamins among other fruits in the world and it is globally
recognized (Wiseman, 2013). In Nigeria, orange is mostly found in the middle
belt particularly in Benue state that is commonly known as food basket of the
nation as its slogan.
A very large number of orange is harvested yearly in Benue
state and exported to other part of the country where it is either consumed
naturally or converted to juice in addition with other fruits (Wiseman, 2013).
Orange trees are widely grown in tropical and subtropical
climates for their sweet fruit. The fruit can be eaten fresh, or processed for
its juice or fragrant peel. As of 2012, sweet oranges accounted for
approximately 70% of citrus production (Bailey and Robert, 1998).
The need to meet household demand for freshly made fruit
juice is of paramount interest to all those who desire to take juice at its
natural state without adding any preservative to it.
Orange is one of the most important fruits and source of
vitamin desired to be consumed in its natural and fresh nature that allow the
consumers to benefit from it. Medically, orange serves as a catalyst to
facilitate digestion and also as a means of reducing constipation in
adolescents (Christopher, 2015).
1.2 Statement of
Manual orange juice extraction using hands have low
capacities and low efficiencies, sometimes un-hygienic, and can hardly meet
demand for large quantities of juice. Extraction of orange juice using
electrically powered juicers has the limitations of irregular supply of power
and sometimes most electrically power juicers are expensive to buy and may
require regular maintenance.
In order to optimize the volume of juice extracted using a
manually with manual extractor, there is need to develop an orange juice extractor using stainless
steel to obtain juice from oranges with little effort and meet home demand for
hygienic and fresh orange juice.
1.3 Aim and
1.3.1 AIM: The aim
of this project is to develop a manually operated juice extractor that will
extract juice from the orange fruit using stainless steel and encourage
hygienic fresh orange juice consumption.
a. To develop a manually
operated juice extractor
b. To construct the juice
c. To evaluate the
constructed juice extractor
Development and construction of manually operated orange
juice extractor will in many ways discourage the consumption of juice
containing artificial preservatives which might be harmful due to long term
consumption. The constructed juice extractor will require no special skill to
operate it, should be affordable, portable and attractive using stainless
1.5 Scope and
This project work is limited to the development and
construction of a manual orange juice extractor using stainless steel.