This is quite an efficient method of production and the amount of the PHB polymer yielded is around 30-80% of the dry weight of the micro-organisms used. Even though this method is efficient it is still not quite economically viable as there is the high cost of using the agar solution, petri dishes and the removal of the nitrogen. More recently as this biopolymers potential to society has become more prominent, scientists are trying to develop more efficient and sustainable means to produce it. In 1992 the idea of using genetically modified plants to produce PHB was developed at Michigan State University. By using the genes from two bacteria producing organisms such as Alcaligenes Eutrophus, they could insert them into cress plants with the aim of these plants producing the PHB.
Anello Professor J. Brown ENGL 1302-73068 February 19, 2013 Why Organic Food Is Better There are many options at grocery stores today and one of the toughest decisions to make is whether to buy conventionally or organic grown foods. Decisions on which to buy can be based on many things; nutrient density of the food item, its exposure to toxic chemicals, impact of growing and production on the environment, or simply the cost and availability of the item. However, the latest research shows that conventionally grown food contains chemical residues, is less nutritious, and harms the environment. Buying organic foods is a smart choice; not only are there health and wellness benefits but it also impacts the environment in a positive way.
• Preparedness for National Disaster/Fuel Crisis • Local produce taste better • Local produce is better for you • Promotes produce diversity • Is GMO free • Helps to build community • Good for local economy/supports local farmers • Beneficial for the environment 11 What are the challenges to local food in Vermont? • Diet adjustments would be needed • Production diversity is lacking • Lack of processing and storage facilities • Cheaper to import foods from agribusiness farms 16 What is currently being done to
The FDA and USDA clearly state that organic foods are no healthier for you than processed food (Organic Foods FAQ). Throughout my research I have found many pros and cons, between organic foods Pros of organic food: It can help in the preservation and conservation of the natural environment. By buying food that isn’t produced and harvested using chemicals, organic decrease their usage. Another benefit is, through organic farming it decreases the amount of chemicals in the production cycle, and therefore it helps to support biodiversity. It encourages a wider range for plants and animals, this leads to a healthier eco system (Johnston).
Since it is a plant it will help reduce the “green house” gases and pollution in the air, not to mention making a cleaner burning fuel source to replace gasoline and reduce the amount of pollution even more. The plant also does not take much soil space and can be grown in between other crops such as corn. Hemp as long roots so that it improves soil structure and replenishes soil with nutrients and nitrogen and helps control erosion of topsoil. Also, once harvested, any residue can act as eco-friendly manure. It is also a weed suppresser to prevent other weeds from growing because it grows so fast and densely, it blocks out sunlight to other weeds that are trying to grow.
What they’re farming are not animals, but are farming grass. Food is more nutritious in its fresh and whole form, but most supermarkets sell food that is processed. You get what you pay for, cheap food has a negative effect on your health. They want to change the way the food industry works and give the opportunity to provide everyone fresh food and not only for those who can afford it. They are
What is the benefit of the modification? Because the GM tomatoes can remain fresh longer they have time to ripen in the sun before picking, resulting in a better tasting tomato! 4. Three advantages of genetically modified foods Longer lasting foods can be more easily transported, Having extra vitamins in food help poor people from becoming malnourished or going blind, and the insecticides inside some genetically modified plants keep farmers from having to spray the whole place down with toxic wastes, and they also 5. A counter argument to one of the disadvantages of genetically modified food Some antibiotics can be transferred to humans and make it harder for us to fight infections, genetically modifying foods could potentially put farmers out of work, and some important insects could be at risk because of the insecticides in foods.
The major problems with cotton are that the plantations require a lot of herbicides and pesticides, they use a lot fertilizer and they use up massive quantities of water. Hemp however makes a stronger material than cotton that can be grown in several different climates, requires no herbicides or pesticides, needs no fertilizers and would consume a lot less water. Because hemp is more durable then cotton I would throw away less cloths and I would reduce my methane as well as my nitrogen emissions. The growing, harvesting and production of hemp textiles create significantly less greenhouse gases then the cotton industry and would be a fast and easy alternative to
There are many advantages and disadvantages both ecological and economical to buying locally versus buying from larger companies that manufacture their food from around the country and sometimes across the world. Buying locally made foods will give the most nutritional value due to food being at the peak of growth and not sent around and the country or around the world. Buying locally also helps the farmers to be able to get fair prices on their produce. According to Terrie Schultz, 2010 "Industrial agriculture is a major source of water pollution. Runoff of chemical fertilizers, animal waste and pesticides contaminates lakes and streams.
After that, if food is available, more food is usually consumed, which helps the progress of obesity. The consumption of more organic foods can combat obesity and malnourishment. Unlike fast food, organic foods are not toxic and have more useful nutrients. However, their price is usually high, and families with low income cannot afford them. Organic food is expensive due to a number of different factors.