Skip to main content

ALPHABETICAL DIET

 ALPHABETICAL DIET Alphabetical diet is one in which one's take one letter diet for 26 days regularly. It starts from A and end in Z. It is basically a cooking and eating challenge and allows a variety of diet in every day life. It is not a weight loss plan. Here we discuss food and drinks available in Pakistan. LETTER 'A' APPLES Pakistan is the 10th largest apple producing country globally. The popular varities included Granny Smith, Golden Delicious, KallaKaku, Pink Lady and Red Delicious. Apples contain pectin, a natural fibre found in plants.It has a cholesterol lowering effect. Apples are low on the glycaemic index (GI) prevents diabetes. Apples are rich in polyphenols ' querctin' lower risk of hearth diseases and respiratory problems.  APRICOTS The apricot's native region is Central Asia. It is a fruit with a firm exterior and a soft interior that is smaller than a peach but looks remarkably similar. Apricots are a great food for supporting eye health sinc...
Post a Comment

POSTBLEACHING

 POSTBLEACHING IN HYDROGENATION PROCESS

A separate bleaching operation known as post-bleaching immediately following the hydrogenation process has three general purposes:

  1. To remove traces of nickel that escape the catalyst recovery filtration.
  2. To remove undesirable colors, generally of greenish hue.
  3. To removes peroxides and secondary oxidation products.
The bleaching process generally employs a bleaching earth and a metal-chelating acid to reduce a residual nickel content to the lowest possible level.  After bleaching,  the spent earth and adsorbed impurities are removed with a pressure filter and the oil is cooled to 130 Fahrenheit before processing.

An alternative to post bleaching is the addition of activated carbon to the oil with the catalyst during hydrogenation. Activated carbon is very effective in removing chlorophyll pigments. After filtering, the oil is treated with citric or phosphoric acid and polish filtered to capture the colloidal trace metals remainig in the oil and any traces of the carbon that have escaped the catalyst filtration.

Labels:

Comments

Post a Comment

Popular posts from this blog

HYDROGENATION

   HYDROGENATION Hydrogenation is a reaction of three component: oil, hydrogen and catalyst . the hydrogen gas must be dissolved in the liquid oil before it can diffuse through the liquid to the solid catalyst surface. Each absorbed unsaturated fatty acids can then react with a hydrogen atom to complete the saturation of the double bond, shift it to a new position, or twist it to a higher melting trans-form. Oil  is hydrogenated for two reasons: One reason is to change the naturally occurring fats and oil into the physical form with the consistency and handling characteristics with required functionality. Hydrogenated edible fats and oil products can be prepared with creaming properties, frying stability, sharp melting points and the other functional characteristics desired for specific application. The second reason   for hydrogenation is to increase oxidative stability . Flavor stability is necessary to maintain product acceptability for prolonged periods aft...
Post a Comment
Read more

MOUTH-WATERING BEVERAGES OF PAKISTAN

                                                           MOUTH-WATERING SUMMER BEVERAGES OF PAKISTAN Pakistan is blessed with all four kinds of weather – summer, winter, autumn and spring. In the southern and south-western parts of the country, in particular, summers can last for up to nine to 10 months, which can be exhaustin g. The temperature in some of these parts rises close to 50 degrees Celsius and, in Sindh, the average temperature during summer stays between 35 and 45 degrees Celsius. Pakistan and summers are famous for the relentless heat. To combat the uncomfortable rise of the mercury, some delicious and refreshing beverages have been created.  Whether it’s about having a full glass of buttermilk lassi or finding watermelons on makeshift stalls, or simply having a glass of rooh afza – summer is a perfect time for u...
Post a Comment
Read more

MACRONUTRIENTS (CARBOHYDRATE)

CARBOHYDRATE Carbohydrates are a group of nutrients important in the diet as a source of energy. They contain the elements carbon, hydrogen and oxygen and are produced in plants by the process of photosynthesis. There are various different carbohydrates but they may be divided into three main groups according to the size of molecules. MONOSACCHARIDES (SUGARS) The monosaccharide sugars commonly found in food contain six carbon atoms and have the general formula C₆H₁₂O₆.   The three most important members of this group are: GLUCOSE Glucose also known as dextrose found in fruits and vegetables. Large amount are found in fruits such as grapes and smaller quantities in vegetables such as young peas and carrots . FRUCTOSE Fructose also known as laevulose is chemically similar to glucose except the arrangement of molecules is slightly different. Fructose is found in many fruits and in honey. GALACTOSE Galactose also chemical similar to glucose . It does not exist as such in foods but ...
Post a Comment
Read more