Showing posts with label Science and Environment. Show all posts
Showing posts with label Science and Environment. Show all posts

Saturday, January 1, 2011

The total ABCD of Wheat !!!

What Is Durum Wheat?

Durum wheat is a type of wheat that is high in protein, gluten, and generally very firm and strong. Kernels of durum wheat are usually large and amber colored. This wheat is most commonly used for making pasta rather than for baking because of its denseness and cooking quality. Pasta made from durum wheat is typically yellow in color because of the wheat's yellow endosperm. The endosperm of wheat is found in the kernel and is usually full of niacin, iron, starch, and protein.

What Are the Benefits of Wheat Germ?

The benefits of wheat germ are numerous, one of them being that this high fiber, high protein part of wheat is one the tastier health foods. It can easily be incorporated into lots of recipes or added to things like cereals or smoothies to include extra nutrition. Unless people are intolerant to wheat, most will find this portion of the wheat kernel easy to digest, though it may be a good idea to start slow in adding it to foods because of its relatively high fiber content. 

What Are Wheat Berries?

 Wheat berries are whole wheat kernels which have had their husks removed. Like other whole grains, they provide a great deal of valuable nutrition including vitamins, minerals, and fiber, and they are often touted as a good inclusion in a healthy diet. Health food stores and some supermarkets carry wheat berries in a variety of packagings, and sometimes finished food products made with wheat berries such as mixed grain salads are also available at markets.

What is a Wheat Allergy?

A wheat allergy is a type of food allergy characterized by adverse reactions to the consumption of wheat. In addition to causing problems when wheat is eaten, wheat allergies may also result in skin reactions in response to contact with wheat, and in respiratory problems after inhaling wheat pollen and wheat dust. Along with soy, dairy, egg, shellfish, tree nut, peanut, and fish allergies, wheat allergies are very widespread around the world, with people from a wide variety of backgrounds experiencing wheat allergies and sensitivity to wheat.

What is the Difference Between Whole Grain and Whole Wheat? 

When it comes to the differences between whole grain products and whole wheat products, there may be some confusion among consumers. While there are many similarities between whole grain products and whole wheat products, there are a few differences that could be very important. Here are some examples.
One of the main differences between whole wheat and whole grain is the process that is used to prepare the grain flour. With whole-wheat flour, the grain has gone through a refining process that has removed some of the nutritional value from the end product. By contrast, whole-grain flour does not go through this refining process, and thus maintains the natural level of nutrients

What is Gluten Flour?

There are several types of gluten flour, most derived from wheat. Gluten is a protein found abundantly in the endosperm of wheat that adds stickiness and sponginess to dough. When people cook with other whole grains, they may not have adequate gluten, and might need to use a bit of pure gluten in order to make breads and other baked goods lighter. There are a few ways to add extra gluten to dough, most of them employing some type of gluten flour to accomplish this. 

What is Kamut® Grain?

Kamut® grain is an ancient grain, and a close relative to durum wheat. It is growing in popularity as an alternative to traditional wheat sources because it is considered nutritionally superior to many other forms of wheat. Research suggests that Kamut® grain may first have been grown in either Egypt or Asia.
When it was first grown in the US, it had no trademark, and was grown mainly as a novelty grain by one farmer in Montana, who got samples of the grain from his son, a WWII airman. The wheat was dubbed King Tut’s grain because of the suggestion of its ancient uses and possible origins. It wasn’t until the 1970s that any farmers thought to grow the wheat in a commercial manner, and there was only one remaining sample of the Montana farmer’s harvest, grown in the 1940s, with which to work.
 

The anatomy of a grain of wheat

A whole grain is mostly made up of 3 parts. The bran, the germ, and the endosperm. Check out this cool picture.
As you can see from the picture. The endosperm makes up most of the kernal, the bran comes next and the germ makes up the least amount. Manufacturers remove the bran and germ when they make refined bread flour (white flour). Which is not good at all.

The bran is the outside layer of the grain and it is a rich source of many vitamins and minerals like magnesium, riboflavin, thiamin, phosphorus, niacin, iron and zinc. Almost all of the fiber within the grain comes from the bran.

The germ is the part of the grain from which a new plant would sprout if you were to plant it. It is a concentrated source of vitamin E, magnesium, riboflavin, thiamin, phosphorus, niacin, iron and zinc. The germ also contains some fat and protein.

The endosperm has very small amounts of vitamins, not nearly close to what the bran and germ have.

Buckwheat - is it wheat or what?

Don’t let the word ‘wheat’ in it’s name confuse you. Buckwheat (Fagopyrum esculentum) looks like a grain and tastes like a grain but isn't a grain at all. Buckwheat is thought of as a cereal, but is actually an herb of the buckwheat family, Polygonaceae, a relative of the rhubarb. Buckwheat is also gluten free, which makes it an ideal food for those allergic or sensitive to the gluten in found wheat and other true grains. After being removed from the husk, the triangular seeds are used to make flour.

      Landmark varieties of wheat in India and their yielding ability
Variety Year of release Yield potential (Q/ha)
S 227 1965 33.7
C 306 1965 36.0
Sonalika 1967 45.5
Kalyan Sona 1970 46.0
WL 711 1975 46.8
UP 262 1977 44.0
WH 147 1977 45.1
HD 2189 1979 45.7
HD 2009 1980 45.8
Lok 1 1981 45.4
HUW 234 1984 35.3
HD 2285 1985 42.5
HD 2329 1985 47.1
UP 2338 1990 51.3
WH 542 1992 61.5
Raj 3765 1995 48.9
PBW 343 1995 63.0
HD 2687 1999 62.9
HD 2733 2001 61.5
GW 322 2002 61.0
DBW 17 2006 64.1

  • The three species of wheat namely, Triticum aestivum (bread wheat), Triticum durum (macaroni wheat) and Triticum dicoccum (Emmer or Khapli) grown on commercial basis in the Indian subcontinent from pre-historic times are of spring type. 
  • five important varieties namely PV 18, Kalyan Sona, Sonalika, Chhoti Lerma and Safed Lerma thereby ushering in the Green Revolution in India.
Released by Total
CVRC SVRC
Bread wheat 199 92 291
Durum wheat 27 19 46
Dicoccum wheat 04 - 04
Triticale 02 01 03
Total 232 112 344
    CVRC –Central variety release committee, SVRC – State variety release committee http://t0.gstatic.com/images?q=tbn:ANd9GcQ7iQD9CLydrxpVZg8dTtjPZBzuVnQrZ7L9qr7kbVnTjrXqOQoAGw


 

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Saturday, May 29, 2010

Bharat Stage norms

http://www.wheelosphere.org/wp-content/uploads/2010/03/Bharat-Stage-4-emissions-smoke-e1268149675317.jpg

The first Indian emission regulations were idle emission limits which became effective in 1989. These idle emission regulations were soon replaced by mass emission limits for both petrol (1991) and diesel (1992) vehicles, which were gradually tightened during the 1990’s. Since the year 2000, India started adopting European emission and fuel regulations for four-wheeled light-duty and for heavy-dc. Indian own emission regulations still apply to two- and three-wheeled vehicles.
Current requirement is that all transport vehicles carry a fitness certificate that is renewed each year after the first two years of new vehicle registration.
On October 6, 2003, the National Auto Fuel Policy has been announced, which envisages a phased program for introducing Euro 2 - 4 emission and fuel regulations by 2010.

 

Comparison between Bharat Stage and Euro norms

The Bharat Stage norms have been styled to suit specific needs and demands of Indian conditions. The differences lie essentially in environmental and geographical needs, even though the emission standards are exactly the same.
For instance, Euro-III is tested at sub-zero temperatures in European countries. In India, where the average annual temperature ranges between 24 and 28 degree Celsius, the test is done away with.
Another major distinction is in the maximum speed at which the vehicle is tested. A speed of 90 kmph is stipulated for BS-III, whereas it is 120 kmph for Euro-III, keeping emission limits the same in both cases.
In addition to limits, test procedure has certain finer points too. For instance, the mass emission test measurements done in g/km on a chassis dynamometer requires a loading of 100 kg weight in addition to unloaded car weight in Europe. In India, BS-III norms require an extra loading of 150 kg weight to achieve the desired inertia weight mainly due to road conditions here


 

OVERVIEW OF THE EMISSION NORMS IN INDIA
  • 1991 - Idle CO Limits for Gasoline Vehicles and Free Acceleration Smoke for Diesel Vehicles, Mass Emission Norms for Gasoline Vehicles.

  • 1992 - Mass Emission Norms for Diesel Vehicles.

  • 1996 - Revision of Mass Emission Norms for Gasoline and Diesel Vehicles, mandatory fitment of Catalytic Converter for Cars in Metros on Unleaded Gasoline.

  • 1998 - Cold Start Norms Introduced.

  • 2000 - India 2000 (Eq. to Euro I) Norms, Modified IDC (Indian Driving Cycle), Bharat Stage II Norms for Delhi.

  • 2001 - Bharat Stage II (Eq. to Euro II) Norms for All Metros, Emission Norms for CNG & LPG Vehicles.

  • 2003 - Bharat Stage II (Eq. to Euro II) Norms for 11 major cities.

  • 2005 - From 1st April Bharat Stage III (Eq. to Euro III) Norms for 11 major cities.

  • 2010 - Bharat Stage III Emission Norms for 4-wheelers for entire country whereas Bharat Stage - IV (Eq. to Euro IV) for 11 major cities. 
     
     
    Indian Emission Standards (4-Wheel Vehicles)
    Standard
    Reference
    Date
    Region
    India 2000
    Euro 1
    2000
    Nationwide
    Bharat Stage II
    Euro 2
    2001
    NCR*, Mumbai, Kolkata, Chennai
    2003.04
    NCR*, 10 Cities †
    2005.04
    Nationwide
    Bharat Stage III
    Euro 3
    2005.04
    NCR*, 10 Cities †
    2010.04
    Nationwide
    Bharat Stage IV
    Euro 4
    2010.04
    NCR*, 10 Cities †
    * National Capital Region (Delhi)
    † Mumbai, Kolkata, Chennai, Bangalore, Hyderabad, Ahmedabad, Pune, Surat, Kanpur and Agra
     

 Current news-----
The earlier deadline was April 1, and is now extended to July 1 to convert their models to Bharat Stage 3 for sale in 13 cities, including Delhi, Mumbai and Chennai. For sale in the rest of the country, auto makers would now have time until October 1 to switch their two-wheelers to BS 3. The move has given some relief to Hero Honda, which sells more than one million Splendors (Splendour is on BS 2) in a year, constituting 25 per cent of the company`s total annual sales. The brand also accounts for 13 per cent of the total domestic sales of motorcycles.

Saturday, September 26, 2009

GK bits

A.
Organisations HQ

1.UN New York
2.Int’ l Court of Justice The Hague
3.UNDP,UNICEF New York
4.UNEP Nairobi
5.UNHCR Geneva
6.IAEA,UNIDO Vienna
7.FAO Rome
8.UNESCO,ESRO Paris
9.IMF Paris & Geneva
10.World Bank (IBRD) Washington DC
11.WIPO,WTO Geneva
12.IMO London
13.UPU Berne
14.ICAO Montreal
15.ADB Manila
16.ASEAN Djakarta
17.CARICOM Georgetown (Guyana)
18.CIS Minsk(Belarus)

B. Rivers
Brahmaputra – 2900 km
Indus - 2900 km
Ganga - 2510 km
Godavari – 1450 km
Narmada – 1290 km
Krishna – 1290 km
Mahanadi – 890 km
Kaveri – 760 km

Ranking of rivers on the basis of length and direction (west to east ,north to south etc) is a frequently asked question in UPSC prelims. One should also have a good idea about the important international rivers. Ensemble’s Geography through Maps is a good book to follow even for non-geography optional students.

C. Information on important straits :
1.Gibraltar strait separates Spain and Morocco.
2.Magellan strait separates Chile and Tierra del Fugeo.
3.Bass strait separates Australia and Tasmania.
4.Torres strait separates Australia and Papua New Guinea.
5.Bab-al-Mandab strait separates Yemen and Djibouti.
6.Strait of Hormuz separates Iran and UAE.
7.Strait of Malacca separates Malaysia and Sumatra.
8.Selat-sunda strait separates Sumatra and Java.

One should look up all important straits in Atlas and in fact referring atlas should become an important part of reading newspaper.Whenever and wherever one encounters the name of any place or country that one cannot place geographically ,one must immediately look it up in Atlas and don’t stop there,go a step further by looking up nearby countries,mountain ranges,rivers and also whether any tropic or equator is passing through it.This will make the learning more complete and can very well make make the difference.

D.Random Information
1.Oxalic Acid – used to remove ink spots.
2.Sulphuric Acid – dehydrating agent.
3.Hydrogen Peroxide – bleaching agent.
4.Haber’s Process – Ammonia.
5.Ostwald’s Process – Nitric Acid.
6.Solvay Process – Sodium Carbonate.
7.Parke’s Process – Silver.

E.Research Institutes Locations
1.Potato - Shimla
2.Leather - Chennai
3.Poultry - B’lore
4.Tobacco - Rajamundry
5.Rice - Cuttack
6.Sugarcane - Lucknow
7.Jute - Barrackpore
8.Botanical Survey - Kolkata
9.Dairy Institute - Karnal
10.Dairy Corporation - Anand
11.Coffee - Chikmaglur
12.Tea - Jorhat
13.Bee - Pune
14.Cotton - Thane

F.Winds
1.Haboob - Sudan
2.Harmattan – West Africa
3.Khamsin – North Africa
4.Bora – Adriatic Coast
5.Zonda – Argentina


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