Anti-obesity oil -Is it a new innovation or rehashing of the old Japanese technology?

It is true that obesity is assuming epidemic proportions in countries like USA where almost one third of the population is either overweight or obese. Therefore any suggestion that can help to deal with highly dangerous global situation is worth getting a close attention provided it is logical, scientific and practical. What is tragic is that there is no unanimity about the exact cause of obesity though different experts opine differently defying any consensus. While consumption of saturated fats and trans fats, carbohydrates, white sugar and high fructose corn syrup are all implicated in one way or the other with obesity, the bitter truth is that humans are themselves responsible for this scourge visiting them through reckless dietary system combined with sedentary life style. There is unanimity that putting on body weight is directly linked to an imbalance between calorie intake and calorie expenditure and if the intake is more than what is necessary, even God cannot help in preventing increased body weight!. Though the theory is so simplistic to understand and to be acted upon by the people, the desire to eat good food ( purely from taste angle) over rides the need to keep the body weight constant for an adult. In other words, the will to moderate food consumption according to one's body needs seems to be lacking in case of most consumers resulting in over consumption. One of the curious facts is that healthy foods are invariably less tastier that nutrient light junk foods with lots of calories loaded in them and naturally such foods more or less create a sort of irresistible addiction, repeatedly attracting the hapless consumer!.

Billions of dollars are being made by the so called nutraceutical industry through peddling of hundreds of products claiming the magical properties of shedding body weight though their credentials are suspect. With food safety authorities choosing to look the other way without coming to the help of the citizen through appropriate control measures, the antiobesity products industry has a roaring time with their uncanny marketing strategy to trap vulnerable people like a "spider trapping its prey in its web"! In parallel with this development, another segment of the industry peddles "exercise" machines and crash "weight shedding courses" for the benefit of overweight people minting enormous fortunes. Who can forget the "famous" (or notorious?) Atkins diet or the South Beach diet and similar weight control regime peddling companies who were able to attract millions of people, scared about the ill consequences of high BMI which can cause a plethora of diseases including diabetes, hypertension, CVD, kidney ailments etc, crippling the life style even at an early stage of life. 

Latest to get the spot light is a romatic product going by the captivating name "antiobesity oil"! Though there are some traditional oil based concoctions in the market coming mostly from China and India, the new offering by the above name got a focused attention during the recent scientists conglomeration at Mysooru in the first week of January this year. According the flamboyant innovators, the antiobesity oil they just discovered could "maintain healthy body weight", provides "clean energy"  and "is not stored" as fat in the body. This product is claimed to have been developed for the "first time" in India from sunflower seed oil and it is "one of the kind in the world"! Added to this the antiobesity oil prepared at Mysooru is safety assured unlike similar ones developed elsewhere in the world, so goes the claim. According to the innovators this product is chemically identified as diacylglycerol oil which is supposed to be edible because the only difference between an edible oil as we are used to at present and their new product is that one of the three fatty acid molecules in the triglyceride oil products has been knocked off by controlled lipolysis. If the new product can be commercially made and approved by the food safety authorities in the country it can be a speciality edible oil for use by obese people to reduce their body weight. Of course the food industry needs to be convinced that the technology is "commercially workable" and economically viable. 

Let us look at the claim that such a product has been made for the first time in the world in India. Looking back one cannot forget that in early 2000 a product called "Enova oil" was developed and marketed in Japan claiming that less of this product is stored as visceral fat in the body unlike triglycerides which are the basic chemical entities of all edible oils. This product also boasted of unsaturated fatty acids which are known to reduce undesirable LDLs and raise desirable HDLs in the blood. However this product was abruptly recalled from the market because of several safety and health issues. One of them was the formation of glycidol during deacylation of the oil, an artifact implicated as potentially carcinogenic. Besides the ratio of Omega- 6 to Omega-3 fatty acids was 10:1 in Enova oil whereas most healthy vegetable oils have this ratio 3:1. High percentage of Omega-6 acids is reported to be associated with higher blood pressure and chronic inflammation. Thus the charmed marketing run of Enova oil abruptly ended in September 2009. Though the manufacturers promised to come back with the product soon, till to date there is no sign of this product, leading one to conclude that the technological and health problems were serious enough for the company to abandon it for ever.  

Another interesting fact which did not come to surface when the benefits of diacyl glycerol were glorified by the innovators pertains to its suitability for use as a frying fat. Most Indian preparations expose them to high temperatures between 160C and 210C and many conventional oils do cause frothing and foaming if the free fatty acid content is high in them. Also the mono glycerides of fatty acids are recognized as an excellent emulsifying agent in preparations where stable water in oil emulsions are to be made and in most counties their use in small quantities as emulsifier is approved as safe. According to FAO-WHO Alimentarius Commission daily intake of 12.5 to 25 mg of monoglycerides per kg body weight is considered safe. This works out to about 0.75 to 1.5 gm intake daily through all the foods consumed by an average person weighing 70 kg. Such data on diacyl glycerol are not readily available though it is generally assumed that the lipolytic enzymes present human body may be able to dispose of the product without much harmful effect. Against such a background if the new so called anti obesity oil is really going to be made for Indian consumers, adequate safety studies and tolerance limits will have to worked out before its clearance as a cooking oil..

V.H.POTTY

http://vhpotty.blogspot.com
http://foodtechupdates.blogspot.com

Calcium carbide "ripening"-A spineless nation tolerates this unsafe practice for ages!

Mango is considered the "King of Fruits" across the world but countries like new Zealand may differ in their perception because of their own unique fruits grown in their countries. Still the variety of aroma, taste, color, sweetness and tanginess offered by Mango are unparalleled. Being highly seasonal and cyclical in terms of production, the availability of Mango varies widely from year to year. Demand for varieties like Badami, Alphonso, Kesar, Mallika, Pairi etc is generally not met fully with the result that market prices vary enormously year to year. India enjoys the unique position in mango production being the major producer growing more than 3 dozen varieties with widely assorted flavor profiles. The 16.33 million tons of Mango produced in India last year accounted for almost 42% of global output, a sizable portion exported to more than 2 dozen countries. Mexico and Brazil with a combined production of about 3 million tons provide strong competition to India in the American continent though they are no match to the Indian mango when it comes to flavor, taste and other eating qualities.

Recent mango season in India saw a spurt in production and for a few months between May and July most markets in the country were flooded with mangoes of different varieties attracting millions of consumers though prices were ruling high most of the time. Why Indian mangoes cost so high is an issue most consumers are concerned with and besides production uncertainties due to weather fluctuations and cultivation practices (mostly in the unorganized sector), the flourishing middle men who control the mango trade can be the biggest culprit. Most growers do not follow sound cultivation practices, selling their trees annually at the flowering stage itself to pre-harvest contractors ( probably money lenders) for arbitrarily fixed lump sum payments, with the contractor taking the risk of crop loss or reduced yield. Most growers do not have sound ripening facilities and it becomes the responsibility of the traders to ripen the fruits and bring them to the market.  

It reflects on the rulers of this country, who in spite of 7 decades of planning since independence could not do much to change the mango production dynamics, leaving the field open for traders and middlemen to exploit the growers by offering low prices and controlling the market prices through collusion and conspiracy to defraud the growers as well as the consumers. Scientific harvesting and post-harvest practices are never followed with the result that much wastage takes place at all stages of handling. Of course these losses are factored when market prices are "fixed" to ensure inflated and unjustified profits. Mangoes are rarely cold stored or stored under controlled atmosphere environments and there fore consumer has to depend on the mango season only to enjoy these delicious fruits. It is all the more reprehensible when one realizes that agencies like APEDA and Ministry of Food Processing Industry of GOI offer substatial financial assistance for modernizing the industry which go begging!    

Like all fruits Mango also becomes sweeter, less greener, and softer as it ripens. Unlike temperate fruits like berries,grapes, pomegranate, tomato etc, coming under the non-climacteric group of fruits which need to be tree ripened, Mango, being a climacteric type can ripen after harvesting taking about 8-10 days after harvesting of the mature fruits under favorable temperature and humidity conditions. The bright reddish/yellowish colors so characteristic of most varieties of mangoes is due to "unmasking" of carotene present in the fruit in significant concentrations after the green chlorophyll is degraded during ripening. Sweetness is developed due to starch degradation during ripening while acidity is reduced to some extent. Ultimate taste is decided by the ratio of sugar to acids in the ripe fruit. Artificial ripening is practiced to cut down the period of ripening using Ethephon and similar ethylene generating chemicals which accelerates the natural process without adversely affecting the flavor to any significant extent. Organized packing industry does use this technique to achieve uniformity in the quality, though the ripening chemical is considered expensive.

A common but undesirable practice in vogue in India to accelerate ripening is to use the cheap chemical Calcium Carbide (CC)which brings about dramatic changes in appearance in a matter of couple of days. Acetylene generated by CC on contact with moisture does this transformation, at least in appearance though consumers will never know how these fruits are ripened. Compared to naturally ripened fruits, CC treated fruits are less sweet, have non-uniform yellow color with patches of green seen on the surface, some what dry in appearance, less juicy and less flavorful. What is of concern is the safety of CC if used though there is no conclusive evidence about the likely consequences of using it. It is classified as carcinogenic with a potential to cause cancer while there are reports that it causes other problems like mouth ulcers, gastric irritation, diarrhea, skin rashes etc in many consumers. CC, being an industrial chemical used for producing Calcium Cyanide, contains arsenic which is one of the most toxic metals. According to some reports more than 50% of mangoes sold in the Indian market are CC treated though this is not permissible as per law.        

It is not that GOI is not aware of this situation because, under Section 44 AA introduced in 1979 in the PFA Act prohibits the sale of fruits ripened with calcium carbide. It is a sad reflection on the seriousness of GOI that not much has been done to enforce this ban. When the PFA Act was replaced with the FSS Act and the food safety regulator (FSSAI) came into being, one expected the new regulator to look at the issue in depth, get a comprehensive country-wide survey done to gauge the extent of the problem, come up with alternate, safe and feasible method of artificial ripening and plug the retail sale of calcium carbide, so that it is not available to fruit wholesalers. Being a cheap chemical that costs hardly a few rupees CC is available freely in the market and just 10 gm would be adequate to ripen about 100 fruits. The country is aghast that the new regulator is as inefficient as the old one and CC ripened mangoes are flooding the market unchecked and unhindered!  .

Though In March last year, the government informed the Parliament that a Joint Committee for Research on Food Safety had been set up in August 2010 and the committee had recommended further research studies to generate information and data regarding the extent of use and effect of artificial ripening agents and other chemicals in fruits and vegetables. Unfortunately nothing seems to have happened and CC treated mangoes still continue to harm the consumers with no fear or deterrent even to day. Interestingly the very same regulator proclaims in its web site that
consumption of CC treated fruits may affect the neurological system by inducing prolonged hypoxia (low oxygen reaching the blood and tissues), which causes headache, dizziness, mood disturbances, sleepiness, mental confusion, memory loss, cerebral oedema (swelling in brain caused by excessive fluids) and seizures!. While mangoes, bananas and papaya are generally ripened with calcium carbide, this practice is spreading like a wild fire with even fruits like sapota, dates and tomatoes being subjected to the chemical treatment. Yet no coordinated action seems to be taking place except for sporadic raids of mango sheds where the fruits are ripened which appears to be an eye wash, throwing dust over the eyes of the citizens! Imagine a whole session of parliament was washed off recently due to irresponsible behavior of the law makers who have no time to discuss problems like this for the welfare of the citizens!  
V.H.POTTY
http://vhpotty.blogspot.com
http://foodtechupdates.blogspot.com