Sunday, April 24, 2016

Fat Tom

FAT TOM
F.A.T.T.O.M. explains what allows foodborne pathogens to grow. You'll also learn some important food safety terms.

FAT TOM will help you to remember these valuable terms:
Food
Acidity
Time
Temperature
Oxygen
Moisture

Food Safety information for consumers, educators, and those working in the food service industry. The information is based on recommendations found in Food Code 2009. Food Code 2009 represents the most recent science-based information about good food safety practices.

Food: There are sufficient nutrients available that promote the growth of microorganisms. Protein-rich foods, such as meat, milk, eggs and fish are most susceptible.

Acidity: Foodborne pathogens require a slightly acidic pH level of 4.6-7.5, while they thrive in conditions with a pH of 6.6-7.5. The United States Food and Drug Administration's (FDA) regulations for acid/acidified foods require that the food be brought to pH 4.5 or below.

Time : Food should be removed from "the danger zone"
within two-four hours, either by cooling or heating. While most guidelines state two hours, a few indicate four hours is still safe.

Temperature: Food-borne pathogens grow best in temperatures between 41 to 140 °F (5 to 60 °C), a range referred to as the temperature danger zone (TDZ). They thrive in temperatures that are between 70 to 104 °F (21 to 40 °C).

Oxygen: Almost all foodborne pathogens are aerobic, that is requiring oxygen to grow. Some pathogens, such as Clostridium botulinum, the source of botulism, are anaerobic.

Moisture: Water is essential for the growth of foodborne pathogens, water activity (aw) is a measure of the water available for use and is measured on a scale of 0 to 1.0. Foodborne pathogens grow best in foods that have aw between 0.95 and 1.0. FDA regulations for canned foods require aw of 0.85 or below.

Tuesday, April 19, 2016

Herbicide (Make UP)

Herbicide, likewise normally known as weedkillers, are compound substances used to control undesirable plants.Selective herbicides control particular weed species. Non-specific herbicides can be utilized to clear waste ground, mechanical and development locales, railroads and railroad banks as they execute all plant material with which they come into contact. Other essential refinements persistence (How long the item stays set up and stays dynamic), method for uptake (whether it is consumed by over the ground foliage just), and mechanism of action (how it works).

Salt and other metal salts were utilized as herbicides, however these have step by step dropped out of support and in a few nations some of these are banned because of their industriousness in soil, and lethality and groundwater sullying concerns.

More research is expected to know the short-and long term impacts of pesticides on people. Albeit a few studies have discovered associations between some childhood cancers and a pesticides, different studies have not achieved the same conclusions. Numerous pesticides disturb the sensory system of bugs, and research has demonstrated that they can possibly harm the neurological system of youngsters.

This is particularly ture for herbicides to harm other lives, since they are dangerous to a wide assortment of plant species, and not only the weeds. In this way, the broadcast spraying of herbicides results in broad exposures non-target species, which can bring about a unintended yet generous mortality of non-target plants. Just these aggressive plants are weeds, and these are the main focus of a herbicide application.

However, there are numerous other, non-bug types of plants in the field or manor that don't meddle with the development of the product plants, and these are additionally influenced by the herbicide, however not to any advantage regarding vegetation administration. Truth be told, particularly in ranger service, the non-target plants might be advantageous, by giving sustenance and natural surroundings to creatures, and averting disintegration and draining of supplements.


Sunday, April 10, 2016

how to find the how tobuild the new sewage treatment system for the homeowners



Sewage treatment system in china



People could find the 6 steps for how to build the new sewage treatment system for the homeowners on the official website of the Ohio department of health. First of all choose the S from the A-Z Index, and then find the link to the sewage. Under the webpage of the sewage, choose homeowner and click the Steps for Constructing a New Sewage Treatment System.

This link will guide people to build a new sewage treatment system.

The first step is to contact neighborhood health district for particular data on STS permitting. We also need the information about when starting to build the land advancement with a STS. Neighborhood health district will visit your site to start the process.

The second step is Obtain a site and soil assessment. A complete assessment of the dirt on the property is expected to decide how much usable soil is available and where it is found. Other site conditions should likewise be resolved, for example, slant, geology and the area of close-by water sources and drinking water supplies.

The third step is to work with a sewage treatment system plan to assess the different types for your parcel. Householders ought to painstakingly assess all kinds of costs including establishment, long operation cost and maintenance and administration contract costs before settling on a final choice.

The fourth step of the plan is to obtain quotes and bids from registered STS contractors.

Step 5: The neighborhood health district  will perform a last examination of your system or object the establishment.

Step 6: Proper operation and support of your new STS is vital to guarantee the system works. Contingent upon the multifaceted nature of your system, an administration contract might be required.


Sunday, April 3, 2016

Water quality coliform bacteria

Water quality coliform bacteria

Coliform bacteria are a commonly used bacterial indicator of sanitary quality of foods and water. They are defined as rod-shaped Gram-negative non-spore forming and motile or non-motile bacteria which can ferment lactose with the production of acid and gas when incubated at 35–37°C.
While coliforms themselves are not normally causes of serious illness, they are easy to culture, and their presence is used to indicate that other pathogenic organisms of fecal origin may be present. Such pathogens include disease-causing bacteria, viruses, or protozoa and many multicellular parasites. Coliform procedures are performed in aerobic or anaerobic conditions.

Water pollution caused by fecal contamination is a serious problem due to the potential for contracting diseases from pathogens (diseasecausing organisms). Frequently, concentrations of pathogens from fecal contamination are small, and the number of different possible pathogens is large. As a result, it is not practical to test for pathogens in every water sample collected. Instead, the presence of pathogens is determined with indirect evidence by testing for an "indicator" organism such as coliform bacteria. Coliforms come from the same sources as pathogenic organisms. Coliforms are relatively easy to identify, are usually present in larger numbers than more dangerous pathogens, and respond to the environment, wastewater treatment, and water treatment similarly to many pathogens. As a result, testing for coliform bacteria can be a reasonable indication of whether other pathogenic bacteria are present.

Most coliform bacteria do not cause disease. However, some rare strains of E. coli, particularly the strain 0157:H7, can cause serious illness. Recent outbreaks of disease caused by E. coli 0157:H7 have generated much public concern about this organism. E. coli 0157:H7 has been found in cattle, chickens, pigs, and sheep. Most of the reported human cases have been due to eating under cooked hamburger. Cases of E. coli 0157:H7 caused by contaminated drinking water supplies are rare.




Source: http://www.epa.state.oh.us/ddagw/gwqcp.aspx water quality of the Ohio