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There are several visual dimensions of food that can affect food intake, example portion size, color, and variety. This dissertation elucidates the effect of number of pieces of food on preference and amount of food consumed in humans and motivation for food in animals. Chapter 2 Experiment 1 showed that

There are several visual dimensions of food that can affect food intake, example portion size, color, and variety. This dissertation elucidates the effect of number of pieces of food on preference and amount of food consumed in humans and motivation for food in animals. Chapter 2 Experiment 1 showed that rats preferred and also ran faster for multiple pieces (30, 10 mg pellets) than an equicaloric, single piece of food (300 mg) showing that multiple pieces of food are more rewarding than a single piece. Chapter 2 Experiment 2 showed that rats preferred a 30-pellet food portion clustered together rather than scattered. Preference and motivation for clustered food pieces may be interpreted based on the optimal foraging theory that animals prefer foods that can maximize energy gain and minimize the risk of predation. Chapter 3 Experiment 1 showed that college students preferred and ate less of a multiple-piece than a single-piece portion and also ate less in a test meal following the multiple-piece than single-piece portion. Chapter 3 Experiment 2 replicated the results in Experiment 1 and used a bagel instead of chicken. Chapter 4 showed that college students given a five-piece chicken portion scattered on a plate ate less in a meal and in a subsequent test meal than those given the same portion clustered together. This is consistent with the hypothesis that multiple pieces of food may appear like more food because they take up a larger surface area than a single-piece portion. All together, these studies show that number and surface area occupied by food pieces are important visual cues determining food choice in animals and both food choice and intake in humans.
ContributorsBajaj, Devina (Author) / Phillips, Elizabeth D. (Thesis advisor) / Cohen, Adam (Committee member) / Johnston, Carol (Committee member) / Bimonte-Nelson, Heather A. (Committee member) / Arizona State University (Publisher)
Created2013
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Description
The unpleasant bitter taste found in many nutritious vegetables may deter their consumption. While bitterness suppression by prototypical tastants is well-studied in the chemical and pharmacological fields, mechanisms to reduce the bitterness of foods such as vegetables remain to be elucidated. Here tastants representing the taste primaries of

The unpleasant bitter taste found in many nutritious vegetables may deter their consumption. While bitterness suppression by prototypical tastants is well-studied in the chemical and pharmacological fields, mechanisms to reduce the bitterness of foods such as vegetables remain to be elucidated. Here tastants representing the taste primaries of salty and sweet were investigated as potential bitterness suppressors of three types of Brassicaceae vegetables. The secondary aim of these studies was to determine whether the bitter masking agents were differentially effective for bitter-sensitive and bitter-insensitive individuals. In all experiments, participants rated vegetables plain and with the addition of tastants. In Experiments 1-3, sucrose and NNS suppressed the bitterness of broccoli, Brussels sprouts, and cauliflower, whereas NaCl did not. Varying concentrations of NaCl and sucrose were introduced in Experiment 4 to assess the dose-dependency of the effects. While sucrose was a robust bitterness suppressor, NaCl suppressed bitterness only for participants who perceived the plain Brussels sprouts as highly bitter. Experiment 5, through the implementation of a rigorous control condition, determined that some but not all of this effect can be accounted for by regression to the mean. Individual variability in taste perception as determined by sampling of aqueous bitter, salty, and sweet solutions did not influence the degree of suppression by NaCl or sucrose. Consumption of vegetables is deterred by their bitter taste. Utilizing tastants to mask bitterness, a technique that preserves endogenous nutrients, can circumvent this issue. Sucrose is a robust bitter suppressor whereas the efficacy of NaCl is dependent upon bitterness perception of the plain vegetables.
ContributorsWilkie, Lynn Melissa (Author) / Capaldi Phillips, Elizabeth D (Thesis advisor) / Cohen, Adam (Committee member) / Johnston, Carol (Committee member) / Sanabria, Federico (Committee member) / Arizona State University (Publisher)
Created2014
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Description
The unpleasant bitter taste found in many nutritious vegetables may deter people from consuming a healthy diet. We investigated individual differences in taste perception and whether these differences influence the effectiveness of bitterness masking. To test whether phenylthiocarbamide (PTC) `supertasters' also taste salt and sugar with greater intensity, as suggested

The unpleasant bitter taste found in many nutritious vegetables may deter people from consuming a healthy diet. We investigated individual differences in taste perception and whether these differences influence the effectiveness of bitterness masking. To test whether phenylthiocarbamide (PTC) `supertasters' also taste salt and sugar with greater intensity, as suggested by Bartoshuk and colleagues (2004), we infused strips of paper with salt water or sugar water. The bitterness rating of the PTC strip had a significant positive linear relationship with ratings of both the intensity of sweet and salt, but the effect sizes were very low, suggesting that the PTC strip does not give a complete picture of tasting ability. Next we investigated whether various seasonings could mask the bitter taste of vegetables and whether this varied with tasting ability. We found that sugar decreased bitterness and lemon decreased liking for vegetables of varying degrees of bitterness. The results did not differ by ability to taste any of the flavors. Therefore, even though there are remarkable individual differences in taste perception, sugar can be used to improve the initial palatability of vegetables and increase their acceptance and consumption.
ContributorsWilkie, Lynn Melissa (Author) / Phillips, Elizabeth D. (Thesis advisor) / Cohen, Adam (Committee member) / Johnston, Carol (Committee member) / Arizona State University (Publisher)
Created2012
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Description
ASU4Food's objective is to increase the visibility of the statewide hunger crisis among Arizona State University's campuses, and to raise monetary and food donations to alleviate this issue. By collaborating with a multitude of organizations both on and off-campus, we aim to become a well-known, powerful, and stable student organization.

ASU4Food's objective is to increase the visibility of the statewide hunger crisis among Arizona State University's campuses, and to raise monetary and food donations to alleviate this issue. By collaborating with a multitude of organizations both on and off-campus, we aim to become a well-known, powerful, and stable student organization. This thesis will cover the endeavors of Elana Niren, Theresa Reckamp, and Sidath Wijetunga regarding the maintenance, growth, and expansion of ASU4Food. ASu4Food has been striving to gain connections and the reputation that would allow it to become an "umbrella organization" with the ability to coordinate all of the food-raising endeavors at ASU. The effects of our actions can be seen in the club's stability. We are now being sought out by organizations such as the Salvation Army, Sunflower Farmers Market, and Shutterfly. However, there is still more work to be done, and we hope that this thesis will act as a guide for future generation of club members and officers, and that ASU4Food will continue improving in activity and efficiency for many years to come.
ContributorsNiren, Elana (Co-author) / Reckamp, Theresa (Co-author) / Wijetunga, Sidath (Co-author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Southergill, Keith (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor)
Created2013-05
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Description
This thesis explores the power of food to transcend cultural and racial borders and to act as a common ground, bringing people of all different backgrounds together. Through globalization, there is an increased movement of people from their homeland to different regions around the world and with this migration comes

This thesis explores the power of food to transcend cultural and racial borders and to act as a common ground, bringing people of all different backgrounds together. Through globalization, there is an increased movement of people from their homeland to different regions around the world and with this migration comes the spread of their culture and cuisine to new areas. This spreading of culture often creates friction and tension amongst other cultures, however as this thesis argues, with increased diversity, there is the great potential for greater interaction with other cultures and therefore greater appreciation. The key aspect of this thesis is the ways in which food can be used as a tool to overcome racial barriers and serve as a means of positive expression of a culture. I hope to show that by engaging with a culture through its cuisine, one can arguably build a greater appreciation for that culture and therefore lower their preconceived notions and stereotypes.
ContributorsZayanderoudi, Rana Patricia (Author) / Talebi, Shahla (Thesis director) / Eaton, John (Committee member) / School of Politics and Global Studies (Contributor) / Economics Program in CLAS (Contributor) / Department of Management and Entrepreneurship (Contributor) / Dean, W.P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
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Description
The M&G Drive is a proposed venture project lead by Barrett seniors, Elijah Smith and Jenna Fitzgerald. This project aims to educate Arizona State University (ASU) students on the issues of food insecurity around the Phoenix valley and facilitate their involvement in helping alleviate this pressing social matter. Scientific research

The M&G Drive is a proposed venture project lead by Barrett seniors, Elijah Smith and Jenna Fitzgerald. This project aims to educate Arizona State University (ASU) students on the issues of food insecurity around the Phoenix valley and facilitate their involvement in helping alleviate this pressing social matter. Scientific research has shown significant inverse relationships between food insecurity and the following: mental and physical health, social skills, and academic achievement. As the largest public university in the nation, Arizona State holds a self-ascribed responsibility for the health of its communities. In order to address this issue on behalf of Arizona State and from the standpoint of college students, this proposed venture will encourage the ASU student population to reallocate their unused M&G Dollars (ASU’s on-campus currency) to go toward this cause. Rather than being absorbed back by the university system, unused M&G Dollars can instead be used to purchase non-perishables that will then be donated to the local Phoenix community in order to help fight against food insecurity.
ContributorsFitzgerald, Jenna Mary (Co-author) / Smith, Elijah (Co-author) / Mokwa, Michael (Thesis director) / Eaton, John (Committee member) / Department of Psychology (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description

For this study, I visited twenty Sprouts Farmers Market locations across the Phoenix-metro area to determine the company’s in-store strategy to make their locations a destination that customers pleasantly anticipate visiting. As a business student myself and a Sprouts employee, I have familiarity with the company and desired to learn

For this study, I visited twenty Sprouts Farmers Market locations across the Phoenix-metro area to determine the company’s in-store strategy to make their locations a destination that customers pleasantly anticipate visiting. As a business student myself and a Sprouts employee, I have familiarity with the company and desired to learn more about why Sprouts stores are so appealing and fun to visit. My method was to determine a representative sample of stores in the “Valley” to visit. At each location, I requested to speak with a manager and asked him or her four questions about that particular store. I also spent approximately forty minutes examining each location and observing details about each store according to a precomposed list of things to particularly notice but with room to add details regarding each store’s unique elements and commonalities with the other locations. The results of this study were rewarding, as at nineteen of the twenty stores I was able to speak with a manager who graciously answered my questions. I collected much data from these interviews and from my own observations. The most significant conclusion I reached was that Sprouts Farmers Market promotes health, natural-eating, freshness, and friendliness in every area. From pleasant employees to natural lighting to unique brands, Sprouts endeavors to carry products that meet the special dietary needs of each customer no matter how general or specific they may be. Another key discovery I made is that the entire company and each individual store revolves around the produce department. Because this is the core of the business, extra measures are taken to promote it, such as frequent produce deliveries to ensure fresh products are on the shelf, extra lighting in that part of the store, and frequent stocking and sweeping to keep the area full and clean. Additionally, the produce department has ample signage denoting organic and local products and information signs about how to consume various produce items, including information to learn about the farmers who grew the goods. Beyond these key elements of Sprouts Farmers Market, an intangible element exists which sets Sprouts apart from its competitors, and that is the personal touch. Sprouts’ employees are friendly, welcoming, and helpful. They are encouraged to ask customers if they need assistance and to inquire how their day is going. The employees are also educated on the products they sell as well as various dietary trends so that they can help shoppers find products that fit their needs. This warmth, helpfulness, and friendliness trickles down from the top management at each store and is communicated to the customers through their interactions with the employees. This personal touch is so important to Sprouts Farmers Market that the company even has a program to encourage employee helpfulness. It is called the “Yes” Program, and essentially empowers employees and managers to authorize price adjustments, exchanges, returns, and the like to assist and serve shoppers with exceptional customer service and provide whatever is necessary to make the customers happy and desirous to become repeat shoppers at Sprouts Farmers Market.

ContributorsHinkle, Amanda (Author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Sinclair, Jack (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor) / Morrison School of Agribusiness (Contributor)
Created2022-05
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ContributorsHinkle, Amanda (Author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Sinclair, Jack (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor)
Created2022-05
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ContributorsHinkle, Amanda (Author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Sinclair, Jack (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor)
Created2022-05