COMPARATIVE ESTIMATION OF ASCORBIC ACID CONTENT IN SOME NGERIA FRUITS VIZ: (ORANGE) CITRUS SINESIS,(PINEAPPLE) ANANAS COSMOSUS
ABSTRACT
A comparative analysis of the ascorbic acid (vitamin C) content of some Nigerian fruits were carried out. The fruits analyzed were (Orange) Citrus Sinensis and (Pineapple)Ananas Cosmosus the fruits were bought at the Ogbete main market Enugu, Enugu State. The fruits were blended and the filterates were used for the analysis. The Ascorbic acid content of the fruits were analyzed spectrophotometrically. The result showed that (orange)Citrus Sinensis contained 7.5 x 10-2g/mol, and (pineapple) Ananas Cosmosus contained 6.0 x 10-2g/mol of Ascorbic acid content. In summary (orange) Citrus Sinensis has the highest ascorbic acid content, than the (pineapple) AnanasCosmosus.
CHAPTER ONE
1.0 INTRODUCTION
Vitamins are organic substances found in most natural foods in rather small amounts and required by the organism in also small amount for the conduct of several chemical and biochemical processes on which the attainment of good nutritional health depends. It can also be defined as organic compounds which occur in natural foodstuffs, either as such or as utilizable precursors, and which are necessary usually in minute’s amounts, for normal growth maintenance, reproduction and health in animals.
They differ from other organic compounds of the diet in that they do not enter in to the structure of tissues (at least in the normal sense, although certain of them may function by stabilizing the integrity of cell membranes) nor do they undergo metabolism to provide energy. The discovering of vitamins the so-called accessory food factors is one of the great achievements of the 20th century. This great contribution to the science of animal and human nutrition was, in the main, conceived in terms of some what nebulous food principles brought to function in terms of modern chemistry and production virtually with the spam of one generation. Although nutritional deficiency diseases such as scurry and rickets has been down for centuries, their causes were either unknown or wrapped in mystery and also their treatment remain empirical.
However, even in the 18th and 19th centuries, it was recognized that some diseases were related to diet.
Dumes J.B.A (18000 to 1884) seems to have been the first practical scientist to question the adequacy of human diet based solely on protein, fats, carbohydrates and minerals. By 1900, several scientists all over the world carried out experiments that led to the conclusion that purified diets were unable to support life and production in animals as diverse as rats, chicks and dogs. It seemed clear that certain foodstuffs must contain small amount of substances essential for vital processes.
In 1906, Hoiptins F.G in Cambridge, England stated this idea in clear scientific terms. The classic work of Eijkman on rice and of Osborn and Mendel on milk eventually led Funk, in 1902, to propound, for the fruit time, the theory that beriberi, scurvy, pellagra and perhaps rickets were nutritional diseases caused by a lack of special substances which are of the nature of organic bases, which were called vitamins.
NOT THE TOPIC YOU ARE LOOKING FOR?
Once payment is made, kindly send us your project topic, email address and payment name to +234 810 144 4147
Once payment is confirmed, Project materials will be sent to your email
The cavity of the endosperm contains watery fluid called coconut water which begin to form around two months after the natural opening of the inflorescence (Janick and Pull, 2008). It is rich in vitamins, amino acids, minerals and sugar (George, 2001...
ympanotonus fuscatus var-radula is found in the intertidal zone at low water mark in several parts of the world. Tympanotonus fuscatus var-radula crawls about under water but usually remain passive when left uncovered by the tides, considerable amoun...
Heavy metal refers to any metallic chemical element that has a relatively high density and is toxic or poisonous at low concentration. Example of the heavy metals include; Mercury (Hg), Cadmium (Cd), Arsenic (As), chromium (Cr) etc. Heavy metal conta...
Manihot esculenta with common names ‘‘cassava’’, is a woody shrub of the spurge family, Euphorbiaceae native to South America. It is extensively cultivated as an annual crop in tropical and subtropical regions for its edible starchy tuberous ...
Snails belong to class Gastropoda, a classification that includes land, freshwater and sea snails and slugs. Snail’s ancestors are one of the earliest known types of animals in the world. There is fossil evidence of primitive gastropods dating back...
Phyllanthus amarus (P. amarus) is a broad spectrum mechanical plant that has received world-word recognition (Srividiya and pervalslaas). In Nigeria, it is called “Oyomokeisoamankedem” in Efik, “Iyin Olobe” in Yoruba and “Ebebenizo” in B...
n Babylon about 5000 BC, ancient Egypt about 3000BC, pre – Hispanic Mexico about 2000 BC, and Sudan about 1500 BC. There is also evidence of leavened bread in ancient Egypt about the year. 1500BC. The Chinese were probably the first to develop vege...
he seed may either have single embryo, producing one seedling or poly embryonic, producing several seedlings that are identical but not always true to the parent type. It is impossible to distinguished true – to – type from zygotic seedlings from...
All chemical pose a risk to the health and safety of persons in the workplace to some extent and for this reason there are some basic requirements in the work health and safety legislation. Hazardous substances have the potential to harm the ...
Heavy metals are any metals exposure to which is clinically undesirable and constitute a potential hazard. The presence of heavy metal in the aquatic environment is the major concern because of their toxicity of animal life, thus disturbing the natur...
Message Us on WhatsApp »
