Love Has No Labels, but GMO Foods Soon Will: The National Bioengineered Food Disclosure Standard

The relative benefits vs. risks of widespread bioengineered crops and other food sources is an often aggressively-debated issue between scientists, the agricultural industry, and consumers. Genetically Modified Organisms, or GMOs, are defined by the European Food Safety Authority as “an organism in which the genetic material has been altered in a way that does not occur naturally through fertilization and/or natural recombination. GMOs may be plants, animals or micro-organisms, such as bacteria, parasites and fungi.” “Genetic Engineering” (GE) is an alternative term used to refer to the manipulation of these species at the DNA level to produce or promote particular traits. GE crops are thus “genetically engineered”. There has been public resistance to the proliferation of GMO food, despite organizations such as the American Medical Association (AMA) and the American Association for the Advancement of Science (AAAS) declaring that genetically engineered foods do not present any appreciable risks.  Nonetheless, a large majority of Americans are in favor of GMO labeling in food products. While the AMA, AAAS, and other scientific organizations argue that GMO labeling will inappropriately imply that GMOs cause harm, consumer advocacy groups contend that people have a right to know what they are eating.

Ignore At Your Own Risk: A Risk Management Perspective on Climate Change

Gallons of digital ink has been spilled discussing and debating the legitimacy of concerns over climate change and global warming. Unfortunately, like many internet debates, both sides of the argument at times rely on emotional arguments, unrealistic assumptions, and overly simplistic outlooks, with a noticeable lack of nuance. While there is overwhelming scientific consensus that global climate is definitively warming, this alone provides only a small part the story. The Earth is indeed warming, but so what? Does it matter, and if so what are possible solutions?

Global warming has environmental, economic, and societal impacts. The projections of the specific timing and severity of those impacts result in a wide range of values, however. Given this, How can we pinpoint the required industrial and societal changes necessary for reducing those impacts if we cannot precisely quantify those impacts in the first place? An effective climate change policy must account for numerous scientific and socioeconomic uncertainties that are likely to substantially affect both the costs and benefits of any policy action.

2017 Nobel Prize Winners

The 2017 Nobel Prizes were recently awarded in early October. Annual Nobel Prizes are awarded for achievement in Physics, Chemistry, Physiology/Medicine, Economics, Literature, and Peace.

Trisodium Phosphate in Food: How I Learned to Stop Worrying and Love Paint Thinner

A recent internet freak-out that may have passed under the radar for many out there concerns the presence of a potentially toxic food additive in cereal that is also found in paint thinner and cleaning agents.

The ingredient in question is Trisodium Phosphate (TSP), a salt compound with many diverse uses including paint thinning, cleaning, other degreasing, and removing oxidized metal for soldering. Interestingly, and the source of controversy, TSP is also used as a food additive and a nutritional supplement for exercise.

While this conspiracy theory originally dates back to at least 2014, it has recently made the rounds on social media within the past month. Despite being thoroughly debunked by Snopes the meme continues. This serves as just a single example of an ongoing chemophobia – distrust of anything seen as an unnatural “chemical” – among esteemed internet dietary experts.

Much of TSP’s functionality comes from its strong basicity, as it has a pH=12 as a 1% solution. Its basic properties will promote reaction with fatty acids through saponification, breaking down grease and oil and thus serving as a cleaner and degreaser (or paint thinner). These functionalities also make it useful as a food additive, as its saponification ability is useful in cheese sauces and it can prevent acidification of food. It also prevents moisture buildup and has some antimicrobial properties. Interestingly, it is also used as an exercise enhancer, presumably due to the need for phosphates in aerobic metabolism.

While TSP use has dwindled due to phosphates being recognized as a major contributor to eutrophication (promoting algae growth in water bodies), it is “Generally Recognized As Safe” for human consumption by the US Food and Drug Administration. It can be very corrosive at high concentrations due to its basic properties, however there is no substantial evidence of long-term effects at low doses for TSP or other phosphates.

It is only natural (get it) to be concerned when a chemical involved in industrial processes appears in our food. However while in this case the food additive is in fact the active ingredient in cleaners/degreasers and not merely an unrelated component, it is the concentration and context that matter. The basicity and phosphate chemistry of TSP make it a useful compound for a diverse set of functions, however the chemical reactions necessary for those functions are restricted by the specifics of the chemical concentration, media, and form. It is often the important nuances and details that are left out of a tweet or meme.

How Effective is Hand Sanitizer?

There are a few standards that everyone keeps on them in their bag. Moisturizer, chapstick, and a bottle of hand sanitizer. Hand sanitizer, with Purell being the eponymous brand name, is available in many public buildings, and some people use it following every touch of a door handle. Purell is a watery gel that is rubbed into one’s hands as a sanitizing agent in lieu of available soap and water. There are different types of hand sanitizer, but the active ingredient in Purell and many common brands is simply ethanol, which universally kills bacteria by dissolving their cell membrane and destroying proteins.

While hand sanitizer is known to be very effective at killing bacteria, for some people it serves as more of a security blanket in response to any and all skin contact. 

The question is, does the availability of hand sanitizer provide a false sense of sanitation?

Fracking - Cracking the Code, and Passing Gas

Fracking is an industrial process for extracting natural gas and oil from previously untapped reservoirs in solid ground. The relative value of its benefits and drawbacks has been greatly debated among politicians, news media, and academia. On one hand, fracking has greatly increased the domestic supply of natural gas and oil, contributing to a global decline in prices and promoting U.S. energy independence. Critics, however, point to evidence of serious health concerns and major pollution/contamination risks.

What is Fracking?

Hydrauling fracturing, or “fracking”, involves the pumping of fluid at high pressure deep into wells in order to crack the rock (typically shale) open and release trapped energy-rich natural hydrocarbons (gas and oil). Fracking wells are first drilled vertically down and then horizontally through the target shale deposit, followed by well encasement and subsequent pumping of fracking fluid. Fracking fluid is primarily water, but also includes supportive chemicals as well as proppant. Proppant can be either sand or tiny ceramic balls that fill the cracked rock and help keep the fissures open for extraction of gas/oil. Once the pressure is turned off, the released gas/oil along with other minerals travel up the well and are extracted.

A short video explaining the process of fracking

How to Edit Genes (Using CRISPR)

Check out my summary of CRISPR, the molecular biology technique currently revolutionizing genetic engineering:

http://www.infectiveperspective.com/blog/how-to-edit-genes-using-crispr

I wrote this article as a guest column for the blog Infective Perspective. Please check out other posts there as well!