i. Title: Testing the Conditions of Black Bread Mold Growth II. Introduction:
Bread. A common household food item used in pizza, sandwiches, burgers, and more. But when bread sits out too long you start to notice some fuzzy stuff growing on it. This fuzzy stuff is Rhizopus Stolonifer or, more commonly known as, black bread mold. This mold is a member of the of the phylum Zygomycota, which have life cycles that include a zygospore. A zygospore is a resting spore that has zygotes made when the mold is in its sexual phase of its lifecycle. Rhizopus stolonifer reproduced asexually and sexually. This happens when two hyphae come together, from different mating types, and form gametangia. The gametangia the fuses
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Molds can even be beneficial in the way that some make our food taste better, like in some cheeses. Rhizopus stolonifer is a common find in your food and is only one in the giant family of molds. Our experiment is to test that if bread is exposed to light, then mold will grow faster because of the increase in heat. This experiment 's purpose is to test the growth rate and conditions of mold. We hope to have a better understanding on the prevention of mold growth. Our manipulated variable will be the amount of light distributed to the bread, the responding variable will be the mold growth, and the controlled variable is the type of bread used in the experiment.
III. Methods:
Materials used for this is four pieces of white bread, four plastic ziploc bags, and a source of light and a source of darkness. Our procedure included six steps. First, you needed to acquire your four pieces of bread and four bags. Secondly, place the bread in the four bags. Thirdly, number the bags 1-4. Fourthly, place two bags in a well lit area (windowsill, lamp). Fifth, place the remaining two bags of bread in a dark area (drawer, box). Sixth and finally, record the amount of mold growth every few days for nine days using a data table.
V. Analysis & Conclusion:
The mold was scarce. As seen on the data table, the bread was only covered .5% in mold by the end of the experiment. In the period between day one and seven there was no change in the
To test this hypothesis, four test tubes filled with 9mL of a solution of baker’s yeast, which are exposed to different temperatures. In the four beakers of water, all with a different degree of temperature, the test tubes are placed. Then, a small piece of filter paper soaked in hydrogen peroxide is dropped in the test tubes. The time that it takes from dropping the filter paper into the test tubes until the paper floats at the top is recorded.
Mold is most likely to find a place to grow in a bathroom, basement or kitchen, but it can grow in other rooms if conditions are favorable. The climate where you live and the living habits in your household can affect the ability of mold to grow. Mold spores can thrive and reproduce in wet or damp parts of your home: areas that have had flooding or where leakage has occurred in roofs, pipes, or walls, or areas around house plants, especially ones that sometimes are over-watered. In just 48 hours, a moist environment combined with room-temperature conditions and an organic food source can lead to mold growth.
Burge's model examined both the allergic and poisonous characteristics related to mold. During the study of mycotoxins, Burge's model showed that the majority of mold growth has not developed extensively enough to produce harmful health effects. In the years that followed, many experts challenged that assessment on numerous fronts.
The methods that were used in this experiment involved measuring the amount of CO2 produced by yeast in fermentation tubes with different types of carbohydrates. Yeast is a type of fungus that has the ability to reproduce by budding and convert sugar to CO2. The treatments of this experiment involve water, glucose, maltose and starch. The control was the temperature of the yeast, the type of yeast, and the 5mL of diluted water per beaker. The response variable is the amount of CO2 formed and it was measured in mL with a ruler.
Mold is a toxic substance that requires moisture to reproduce, making it common in areas like the Gulf Coast where humidity and heavy rain can encourage mold spore activity. It is frequently found in parts of the home where water is frequently used, such as kitchens, bathrooms, and laundry rooms. Homeowners often find tell-tale black speckles in these rooms, indicating the presence of mold. However, it can also be an invisible problem, growing in dark areas such as basements, closets, and attics. Ventilation systems can also be breeding grounds for mold; as temperature-controlled air is transported through your home, mold can also travel through the ductwork.
During this experiment many errors were made. The biggest error that was made was that we did not control the environment that the slime molds were in. We initially kept them at school in favourable conditions, where growth was good. We then took them home and moved them around the house, so the slime mold was constantly having to adapt to these environmental changes, until it could not withstand it anymore, and eventually died. Another error that was made was the fact that in transferring the slime molds, and feeding them we used only inoculating hoops, these inoculating
To an untrained eye, it may seem like all the mold has been removed. However, that is not always the case. Mold can go undetected for months if someone doesn't know what they are looking for. When you hire a
This study was conducted at a university in the biology department showing that it has been peer reviewed and the authors have biological degrees. These prove the reliability of their experiment. The experiment is also valid as their writing was of a professional standard and their sources were referenced and credible. The data is not limited as it refers to all types of mould. (CJ LePrevost, N Wood, M Boucher;
How does Mold grow on bread? Well the experiment I did showed me.But, I am gonna tell you guys by all the research I did. So, Mold grows because of small tiny spores that float around in the air. The mold that is on the bread usually grows on cheese, Bread, and other foods. Also, for Mold to grow it is required that the bread should be moist. Also, the best temperature so Mold can grow is 70 degrees fahrenheit and 20 degrees celsius, or more so mold can grow. So, know we know how mold grows but know let's talk about the dangers of eating Mold. So, the dangers of eating moldy bread is dangerous because you could be eating many different types of poisons. Some of the poisons you could be eating are mycotoxins, or fungal poisons. This fungal poisons
The subject of black mold gathered a lot of attention in the late 1990’s. Up to that time, little attention had been given to this topic and there were few government regulations regarding black mold.
The experiment was conducted, and it was trying to find the best type of flour to make bread rise. The experiment consisted of four different types of flour to make the bread rise. The four different types of flour are whole wheat flour, all purpose flour, rye flour, and the tapioca and rice flour blend. Each type of flour had different amounts of gluten, and some did not even have gluten in them.
Therefore, we found out that the milk molded the fastest and that the bread did not mold at all. This was because the milk needed to be refrigerated. Angela's hypothesis was all correct. Meanwhile, Avril's hypothesis was part incorrect. The bread needed the least refrigeration. Thankfully, there were no accidents with the mold. ( Warning : Do Not Eat Or Touch Mold
The information gathered in this experiment may be relevant to those individuals who contend with food borne molds at home, or professionally. Because the rate of mold growth can vary depending
the image silver (Nishimura, 1993). Symptoms of silver oxidation include fading, silver mirroring, and discoloration (Weaver, 2008). Moreover, acidic gases that are often present in the air cause paper supports to discolor and become brittle, and gelatin to degrade. Mold is a common cause of damage to photographs. Gelatin binders, with their high-protein content, and paper with their high-cellulose content provide the culture medium required for mold growth. When proper combination of nutrients and environmental condition is present, spores absorb water and grow. They grow rapidly and branch repeatedly forming a mold colony. Mold feeds on gelatin and paper
The procedure for this experiment was to first obtain four balloons and blow them up in order to stretch them. Then obtain and fill the four large test tubes each with thirty milliliters of warm forty degrees Celsius water and two grams of dry yeast which was weighed on a scale and scooped out by a spatula. After five milliliters of water, ten percent glucose, fructose or sucrose went into one of the four test tubes. Then parafilm was placed on top of each of the test tubes to seal them and they were swirled activating the yeast through rehydration. After swirling the film was removed and the balloons were tightly placed on the test tubes. Then finally observed the tubes build up of CO2 all the while swirling gently every fifteen minutes, recording observations.