Practical 4
Determination Of Fruit Firmness
Introduction
The development of sensors to measure fruit internal quality variable is one of the challenges of post – harvest technology. Several variables can currently be measured, including sugar content, firmness and internal disorders.
Fruit quality is related to both internal variables (firmness, sugar content, acid content and internal effect) and external variables (shape, size, external defects and damage). Increasing consumer demand for high quality has led to the development of optical, acoustic, and mechanical sensors that determines this quality.
Fruit firmness is one of the most important quality variables; it is an indirect measurement of ripeness and its accurate assessment
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upper | middle | bottom | average | | Red apple | With peel | 9.1 | 8.3 | 8.3 | 8.567 | 9.9 | 9.6 | 8.9 | 9.467 | 88.427 | | Peel off | 7.1 | 8.6 | 9.6 | 8.433 | 8.5 | 7.3 | 8.7 | 8.167 | 81.400 | Green apple | With peel | 10.0 | 7.9 | 6.1 | 8.000 | 8.6 | 7.1 | 3.2 | 6.300 | 70.118 | | Peel off | 6.3 | 5.9 | 7.0 | 6.400 | 5.6 | 5.9 | 7.3 | 6.267 | 62.110 | Plums | With peel | 2.2 | 3.0 | 2.2 | 2.290 | 2.7 | 2.1 | 2.1 | 2.430 | 23.144 | | Peel off | 1.1 | 1.7 | 1.6 | 1.433 | 1.2 | 1.5 | 1.3 | 1.300 | 13.401 |
Fruits | Maturity stages | Rep 1 | Rep 2 | Firmness (average rep 1 and rep 2), Newton | | | Side A | Side B | Side A | Side B | | Mango | unripe | Upper | 1.5 | 1.4 | 3.5 | 6.0 | 28.3608 | | | Middle | 1.4 | 1.2 | 3.4 | 3.3 | | | | Bottom | 1.5 | 2.0 | 4.5 | 5.0 | | | | Average | 1.467 | 1.533 | 3.800 | 4.767 | | | | Average for both side | 1.500 | 4.284 | | | Ripe | Upper | 1.5 | 1.4 | 1.1 | 1.6 | 11.4444 | | | Middle | 0.8 | 1.2 | 1.0 | 1.4 | | | | Bottom | 0.7 | 0.9 | 0.9 | 1.5 | | | | Average | 1.00 | 1.167 | 1.000 | 1.500 | | | | Average for both side | 1.084 | 1.250 | | | overripe | Upper | 1.0 | 0.9 | 1.0 | 1.1 | 9.1521 | | | Middle | 0.9 | 1.0 | 1.0 | 0.3 | | | | Bottom | 1.0 | 1.8 | 0.8 | 0.4 | | | | Average | 0.967 | 1.233 | 0.933 | 0.600 | | | | Average for both side | 1.100 | 0.7665 | | Pineapple | unripe | Upper | 3.4843 | 13.2864 | | | | Middle | 4.4888 | 12.8476 | | | |
In this lab we looked at the mold on three different fruits in three different environments to asses which fruit would have the most mold and in which environment the mold would be present the most. For the experiment we used fruits that were in season so that we could also compare organic and non-organic fruit. Because of this my group chose tomatoes, peaches and apples. We hypothesized that peaches would rot the most out of each of the fruits and that the peaches would rot the most in our warmest environment, the incubator. The fruits were then observed over a period of weeks. At the end of this period of time the peaches had rotted the most and burst and the peaches in the incubator were the first to go.
The ends were trimmed of each core to 3 centimeters in length. The cores were blotted dry and weighed each to the nearest one hundredth of a gram and results were recorded. 20 ml of each sucrose solution were poured in the labeled, 50 ml beakers (0.0m-0.8). Placed one white potato and one sweet potato core in each beaker. The potato cores were left in sucrose solution for one hour.
When one considers fruit, there may be bland thoughts of healthy living, diets and the whole nine yard of the dos and don’ts of organic eating. However, when I think of fruits, I feel they are all endowed with a powerful medicinal by-product that is naturally stored within them. Hence my product choice for export. To the Chief operating officer of Investors Inc., I present to you my platform. In the Caribbean, many feel that all fruits are grown on each island in the exact same abundance; this is indeed a myth. Each Caribbean island has its unique crops that are harvested in its soil and grows based on weather conditions. In the Bahamas, the soil is excellent for the growth and harvest of year-round coconuts. Therefore, I plan to use the coconut
Seth Holmes, the Author of “Fresh Fruit Broken Bodies”, is a cultural and medical anthropologist and physician. The focus of this ethnography is directly in the scope of his interests and his perspective as a physician and as a white person gives an interesting view of how he walkes through the world compared to the people he meets.
In the ethnographic text, Fresh Fruit, Broken Bodies, by Seth Holmes, Holmes describes his experience on enduring the living and working conditions of migrant workers. Seth Holmes’ social positions and identities helped bring the ethnography forward by showcasing the stories of Triqui migrant workers and how they suffer in everyday life because of the cycle of suffering. On the other hand, Holmes risks credibility and validity as the ethnographic text is taken from his point of view as a white man rather than a Triqui worker’s. As the author of the ethnographic text, Seth Holmes takes an in-depth look inside the lives of the Triqui workers and the problems they encounter in the face of racism and the social, political, and economic
During my high school years, I recall working in the fields during vacation breaks with my mother harvesting tomatoes, picking up cherries, and pruning grape vines. Fascinating as it sounds, I was always intrigued to understand why fruits and vegetables spoil or often cause food poising in humans. Although, when I questioned my mother why these fruits spoil, she responded it was due to “little bugs,” which was not a sufficient response.
Fresh Fruit, Broken Bodies by Seth M. Holmes, anthropologist and physician, sheds light on the everyday lives of Mexican migrant farm workers in the United States, specifically in Washington and California. Seth Holmes exemplifies objective relativism in his book by not only showing the perspectives and motives of the migrant farm workers, but also the farm executives and clinicians. Anthropologists use the method of ethnographic fieldwork because the body provides insights and data that facts cannot. The journey begins with Holmes alongside his Triqui companions crossing the border from Mexico to the USA. Homles describes the first part of his journey crossing the border as mentally and physically exhausting but it is necessary for them to
In such condition there is no place for industry, because the fruit therof is uncertain, and consequently, no culture of
It is that first bite you take of one of your juicy and savory store bought apples that just sends your taste buds wild. You can tell by how juicy it is that the apple was probably picked fresh last week. However, that is not the case. That apple had been picked mid-august while it was not fully ripe, was treated with a chemical called 1-MCP (Methylcyclopropene), waxed, boxed, and stored in a cold warehouse for up to 9-12 months. Apples used to be sprayed with fungicide before they used 1-MCP, but after so many health issues it was put to a stop. We have no idea of what is really being put into our food to give them the tastes that we enjoy so much. Unfortunately, American society today barely even knows how food is grown anymore. Barbara Kingsolver’s,
In the 50% sucrose group the circumference of the grapes decreased at an average of 0.67 cm during the experiment. In the less concentrated sucrose solutions that
Abstract: The purpose of this experiment was to identify the internal concentration of potato cells when soaked in solutions with different sucrose concentrations. During this experiment, potato tuber segments were soaked in solutions containing 0 M, 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M of sucrose for one hour. After the allotted time, the potato segments that were soaked in the 0.5 M solution (the highest concentration) decreased in mass, and the segments soaked in the 0 M solution (the lowest concentration) increased in mass. Therefore, the alternative hypothesis was supported because the concentration of sucrose in the solution affected the percent change in mass of the potato segments.
During distribution fruits and vegetables face a lot of safety issues from harvest, to washing, and to shipping. Not all
Microgaming is increasing the temperature for 2017’s Valentine’s Day with their two new slots, Secret Romance, and Fruits vs Candies. Both games have sweetest and tempting bonus features from Microgaming.
Discussion Although the hypothesis is supported by the results, there were some flaws in the experimentation stages that could negatively impact the reliability and validity of the data one being the accuracy of measurements. Although the apples were all weighed to be approximately 40g and the
How much do we really know about the tomato other than its savoring juices and bright reddish color? Have we the least bit concern for the origin or even the nature of its mere existence? The tomato plays a big role in our economy, in terms of wealth, resources, production, and consumption. Botanically, the tomato is a fruit and as common as the air we breathe. This particular fruit is loaded with tiny seeds, low in sugar, and therefore not as sweet when compared to other fruits. Here in these United States it’s used as a culinary vegetable. The tomato is tossed in salads, added to entrées, strained as a juice, tucked into sandwiches and the list continues.