Evaluation And Extraction Techniques Of Heavy Metal And Minerals In Fruits And Vegetables Using Sugar Solution (Record no. 13218)
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| 000 -LEADER | |
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| fixed length control field | 05052nam a22002057a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20170726153453.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170726b2016 xxu||||| |||| 00| 0 eng d |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 2755-T |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Razia Sajid (2014-VA-224) |
| 110 ## - MAIN ENTRY--CORPORATE NAME | |
| Location of meeting | Dr. Saif-Ur-Rehman Kashif |
| 245 ## - TITLE STATEMENT | |
| Title | Evaluation And Extraction Techniques Of Heavy Metal And Minerals In Fruits And Vegetables Using Sugar Solution |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Year of publication | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 124p.; |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Fruits and vegetables are widely used as well as for nutritional purposes .The texture and firmness in them is due to their composition which is mainly cellulose, hemicelluloses and pectin. In diet fruits and vegetables that are of great importance because they have mineral salts and vitamins in them apart from that they have potash, water, iron, calcium. To avoid and prevent many diseases they are very use full and to maintain health. In a diet the main sources of carotenoids are fruits and vegetables. In carotenoids there is a double conjugate bond present which plays a key role in determining their antioxidant properties. In human nutrition the main role is played by are fruits and vegetables because they have a key role in the regular functioning of a body. As compared to fruits, vegetables are a richer mineral source but both of them are ‘nutrient-dense foods’ that provide extensive amount of micronutrient, minerals, vitamins but only little calories. By contributing vitamins vegetables show vital diet constituents, various nutrients, macromolecule, iron, and metallic element and they act as a buffering agent for acidic materials. Over a substantial range of concentrations they play and important and vital role. The occurrence of metal accretion in vegetables can cause a hazard to human. Amino acids, dietary fibers, carbohydrates, vitamins and minerals are provided by fruits that’s why they are measured as protective supplementary food. They are necessary for neutralization of acid, during the digestion in stomach which is formed and apart from that they are very efficient in the management of many diseases due to the existence of antioxidants and other ingredients that are biologically active. Thespurposesofsthesstudyswasstosvaluatesthesamountsofmetalssandsmineralssinsfruitssandsvegetablesstosbessafesforshumansconsumpton. Fruit and vegetable samples were collected randomly from local markets of Lahore. Selected fruits were mango, orange, strawberry, banana, Summary 115 melon, tomato and apple and selected vegetables were onion, cabbage, lady finger, cucumber, coriander, brinjal and spanich. Five treatments were applied to all the fruits and vegetables. (T1)- Control, (T2)-Sample slices were dipped into tap water for 15 mins, (T3)-Samples slices were dipped into tap water for 30 mins, (T4)-Sample slices were dipped into 2% sugar solution for 15 mins, (T5)- Sample slices were dipped into 2% sugar solution for 30 mins. Samples were digested in fume hood by using the diacid mixture (HClO4:HNO3; 1:3). 1g of air dried sample was taken in Kjeldhal’s digestion tube followed by 10ml of diacid mixture and heated at 150 °C for 30 minutes on digestion block and then at 250 °C until wine green or water clear color reached (John 1984 Method). Sugar solution, tap water and samples were analyzed for Sodium (Na), Calcium (Ca) and Potassium (K) by using Multi-channel Flame photometer (AFP 100). Heavy metals including Pb, Zn, Mn, Ni, Mg, Se, Cr, Cu and Fe in the digested samples were measured using Atomic Absorption Spectrophotometer (Polarized Zeeman Z-8230 Atomic Absorption Spectrophotometer). The results showed that all the fruits and vegetables shows the value under the permissible limit by WHO for the potassium (K), sodium (Na), zinc(Zn), iron (Fe), nickel (Ni) and magnesium (Mg). Only high concentration of potassium (K) was observed in tomato (1762 ppm) and coriander (2809 ppm). While lead (Pb), chromium (Cr), calcium (Ca) and manganese (Mn) have the values which are very high than the limits. Banana showed the highest value for lead (Pb) and chromium (Cr) which are 20.17 ppm and 3.83 ppm the value are ten times higher than the permissible limit. Copper (Cu) is not detected in any fruit and vegetable. Spinach showed the maximum value for Ca (5885 ppm). The highest value for Mn is observed in Coriander which is 23.5 ppm. All these metals have toxic effects on human being. Lead (Pb) and Chromium (Cr) are carcinogenic and mutagenic and cause serious problems in humans as they cause mutations and also can cause damage to nervous system. The accumulation of these metals in the Summary 116 fruits and vegetables is because of irrigation with the waste water or because of the unfit water which is used for the irrigation. Heavy metals such as lead (Pb) and chromium (Cr) are accumulated in the fruits and vegetables and impose serious threat to human being. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Environmental Science |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dr. Fariha Arooj |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | MS.Noor Ul Hudda |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Thesis |
| Damaged status | Collection code | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Accession Number | Koha item type |
|---|---|---|---|---|---|---|---|---|
| Veterinary Science | UVAS Library | UVAS Library | Thesis Section | 2017-07-26 | 2755-T | 2755-T | Thesis |