Friday, September 30, 2011

Butter milk(y) way




           Other day I told my DH(Dear Husband) to get some butter milk. Since Dad is visiting us from India, he prefers butter milk over yogurt and I always tend to keep a quart (about 1L) of butter milk at home. Without realizing that I already had 1 quart in the refrigerator, DH brings home 3 more quarts of butter milk. Now I am refrigerator full of butter milk!!!! I had to quickly find a way to use it and decided to make majjige huli (Buttermilk based sauce with vegetables)

Ingredients:

Vegetable: You can use most of the gourds (Pumpkin, Squash etc) Okra or eggplant.  Tomatillos also goes very well with this recipe
Coconut: 2-3 Tsp (Either freshly grated or frozen)
Green chilies 2-4
Uncooked rice: 1 tsp
Channa Dal: 2 tsp
Mustard seeds: 10-15 seeds
Butter milk: 2-3 cups
Salt to taste
Turmeric

The pre-preparation is to soak channadal, rice and mustard seeds in 1/4 cup of water for couple of hours. You can use hot water and cut the time to 30 min. Another way is to use rice flour and Bessan (Chickpea flour) and skip the soaking step.

Preparation method:

          If you are using Okra or Eggplant or Tamotillos, saute them in little bit oil till the vegetables turn light brown. In case of Okra, the aim is to remove all the gumminess.  For other vegetable such as Pumpkin or coyote squash (Seme Badne Kayi), you can cut the vegetables and boil in water till soft.

         Grind soaked channa dal, rice, coconut, mustard seeds, green chilies and turmeric with little bit of buttermilk in the blender to make it to a smooth paste.  If you are looking for low fat recipe, then skip adding coconut.

        Heat oil in small pot and add mustard seeds and let seeds the splutter. Add curry leaves and the ground paste(From step 2) .  Add cooked vegetables and remaining butter milk and cook till the mix gets little thick (2-3 min). Add salt to taste and simmer.



This creamy and rich recipe goes very well with Rice.

Science of Butter milk:  Traditionally buttermilk is what is left over after the butter is churned out of the milk and usually slightly sour in taste. If you look at any ayurvedic book or talk to old timers, they will say there are 4 kinds of butter milk (The differences are in terms of amount of fat and water and if the butter is removed or not).  But the basic principle of making the butter milk is the same. Ferment the milk with the right kind of bacteria to make curds/ yogurt and churn the curds/yogurt to buttermilk with or without addition of water. In US, most grocery stores have cultured buttermilk which is done in the similar way by adding active cultures.

Benefits of Buttermilk:
Buttermilk is known to have lot of health benefits especially related to digestion.
  • It is beverage of choice in summer months as it is considered a good coolant.
·    For indigestion and upset stomach (Now I sound like Pepto Bismol ad :-) ), buttermilk is supposed to help to reduce the pain and symptoms
·     Few seeds of Fenugreek (methi seeds) with a spoonful of buttermilk helps with indigestion

       
      To understand the health benefits of buttermilk, let us talk about microbiology.

           The first step of buttermilk making process is to ferment milk. This is achieved by using the yogurt from day before (What mom used) or using starter cultures (what industry uses). In both methods what we are doing is adding live bacteria known as Lactic acid Bacteria (LAB).  The most commonly used bacteria for yogurt/ buttermilk fermentation are Streptococcus thermophilus and Lactobacillus bulgaricus and/or Lactococcus lactis.  These bacteria are known as the Lactic acid bacteria as they convert the milk sugar Lactose into lactic acid which gives the sour taste to the yogurt/buttermilk.
  
        Human gastrointestinal tract has number of bacteria mainly belonging to  Lactobacillus and Bifidobacteir species. These organisms play a vital role in our existence as they produce some of the vitamins (B and K), enzymes such as Lactase and acts as competition with pathogenic (bad bacteria) for the colonization in our gut . These organisms are also known to produce anti-bacterial and fungal substances to protect against pathogenic fungus and bacteria, production of anti-carcinogenic substances and help with the development of immune system.

        When the balance of the natural gut flora is affected due to antibiotics or infection/ illness, resulting in Diarrhea and other related issues, it has been shown that  eating yogurt/ buttermilk or other probiotic (Literally means "For life") containing foods restores the natural microbial balance.

Lactose intolerance and cultured milk products: If you suffer from Lactose intolerance, yogurt/buttermilk is considered better for you.  Lactose intolerance happens in people who lack the Lactase enzyme that breaks down the Lactose sugar in the milk to its constituents: Glucose and Galactose which are then absorbed by the intestinal walls. If your system lacks the Lactase enzyme, the Lactose can not pass through the intestinal wall (too big to go through) and will be attacked by the gut microbes producing gas. Your body tires to get rid of the gas by contraction (hence the abdominal pain) and flushing with water (Diarrhea).  Since in the cultured milk products, the microbes have already done the breaking down of the Lactose into lactic acid, when you consume the cultured diary product the chain reaction that leads to the abdominal discomfort.

Useful web pages :

Tuesday, September 20, 2011

Pleasure of simple food (Science)

As I sit on my couch on this fall morning and thinking about what to cook for lunch, I think about comfort food: something warm,something soothing. I am thinking about Rice and Dhal. Simple to make yet so delicious. It takes me back to my childhood when mom used to feed dahl and rice with ghee. When my son was 6 months old and we started him on the solids, this was his first bite -mashed up dhal with rice and ghee. Like the diverse people of India, we have lots of ways of making Dhal. The recipe I use is what my mom is used to make when we were kids. For making Dhal you will need :

Basic Version                                                                                   Spicy Version

1 cup of toor dhal                                                                          1 cup moong dhal
Pinch of Turmeric                                                                          Turmeric
Salt to taste                                                                                   1/2 cup coconut
Oil                                                                                                1/2 tsp Jeera
Mustard seeds                                                                               2-4 green chillies
                                                                                                     Oil
                                                                                                     Mustard seeds
                                                                                                     Salt to taste


Boil the toor dhal in water (2 cups of water with pinch of turmeric added ) until they are very soft.
The usual way I cook dhal is by using a pressure cooker.   Lately I use pressure cooker lot more as food cooks so much faster and evenly. If you are using a pressure cooker, let it whistle for 3-5 whistles. On a side note, my 3 year old son like to scream  with the whistle every time the whistle goes off  and it is hilarious to watch him scream his head off and he knows he is being funny and hence the pitch goes up higher as we laugh :-)

 If you are not using a pressure cooker, it will take 30-45 minutes cook the toor dhal to the right consistency ( Cooked dhal should not have any hard areas in the center and should become a paste if pressed).
Freshly cooked Dhal
Once you have the dhal ready, you can add tadka to it. Tadka is again very specific to your taste. I like to heat oil and add mustard seeds. Let the seeds splutter  and then take off from the stove and add it to the cooked dhal. Add salt to taste and boil for few more minutes. Other things you can add to the tadka are curry leaves, Cumin (Jeera), onions (Fry them till brown), garlic etc.

For the spicy version, combine coconut, jeera and Chillies and using a blender make it to a smooth paste. Add this paste to the cooled dhal  along with salt and tadka and simmer. This recipe goes well with chapathi and rice.

Now for the fun part: Science behind why we eat dhal and what it provides

 

This simple dish is a staple for most of the Indians. We eat some version of dhal everyday. When I tell people we are vegetarians, usual question is how do you get your proteins?  Of course from lentils is my normal answer. 
To examine this question from a Food Scientist point  view, the question is not how we get our protein but do we get a  "Complete Protein"?  A complete protein is the one that has all the "essential " amino acids ( For those of you who have forgotten biology completely, Amino acids are the building block of  proteins. They are 20 amino acids and our amazing body can make most of them except for few that need to supplied through food) .  In nature not all proteins are created equal and most of the proteins derived from animal source are "complete protein" with all the essential amino acids. Proteins from plant source usually lack one or more essential amino acids.

But don't worry yet!!   Indian diet tend to have a mixture of all different kinds of proteins (coming from rice, wheat etc) . What is missing lentils is supplied by what we eat with dhal  i.e rice or roti. We get all the essential amino acids we need by combining various sources of protein in our daily diet (There is growing body of evidence suggesting that even in lentils, the amount of essential amino acids are enough to sustain an adult human and combining food is not necessary).  One cup of cooked lentils has about 18 g of protein and an average adult weighing about 160 lbs needs about 65-70 g of protein everyday. If you are looking to increase your protein intake ( to help with weight loss), Soy is a great source of protein for vegetarian diet. A cup of cooked soy (175 g) has about 28-30 g of proteins. Bottom line is to eat a well balanced meal with a variety of protein source to provide with enough calories and proteins. 

If you are curious about finding out levels of proteins in your food, USDA web page has a good resource : http://www.nal.usda.gov/fnic/cgi-bin/nut_search.pl .

Other good resources I found on protein writing this blog: