Browsing by Author "Brochetti, Denise"

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    Chemical, Physical and Sensory Characteristics of Lactose-reduced Baked Custards Made with a Low-fat, Low-cholesterol Egg Substitute
    Wu, Veronica Tong (Virginia Tech, 1996-09-24)
    Two experiments were conducted to examine the effects of type of milk (whole; nonfat; nonfat, 70% lactose-reduced) and type of egg (fresh, whole egg; egg substitute) on the quality of baked custards. The egg substitute was a combination of dried egg whit e solids, dried low-fat, low-cholesterol egg yolk solids, and xanthan gum. Custard formulations served as prototypes for use in studies conducted in the Department of Food Science and Technology, Virginia Tech. In those studies, the effects of processing parameters on the quality of the custards were examined. The goal of all the studies was to develop shelf-stable lactose-reduced custard mixes that have potential for use in the foodservice industry. In Experiment I, chemical, physical, and sensory characteristics of a dessert type baked custard, made with sucrose, were examined. In Experiment II, the same characteristics were examined for a cheese flavored, entree type custard made without sucrose. Results indicate that use of nonfat and nonfat, 70% lactose-reduced milk in place of whole milk decreased significantly total fat and cholesterol concentrations in both types of custard mixes. Lactose-reduced milk also decreased lactose and increased galactose concentrations. The egg substitute decreased total fat and cholesterol concentrations and increased protein concentration. In general, lactose reduction had little effect on the physical and sensory characteristics of both types of custards, but the egg substitute affected these characteristics. Custards made with the egg substitute had less intense yellow color and greater gel strength than those made with fresh, whole egg. These custards also were less bright and more uneven in color and had weaker egg flavor and aftertaste. Based on results of this study, development of a lactose-reduced custard is feasible. However, additional studies are needed to examine potential for use of the formulations in the foodservice industry. Because the mixes could be used as bases for other types of products, such as custard pies, filled pastries, and quiches, studies that focus on development of those products could help define the niche for the mixes in the foodservice industry. Because of the trend in today1s market for reduced-fat, reduced-cholesterol foods, additional studies could be done to examine the effects of various types of egg substitutes on the quality of the custards.
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    College Women's Perceptions of Dairy Foods: A Qualitative Study
    Weiglein, Carolyn Anderson Jr. (Virginia Tech, 1998-07-24)
    Research has indicated that college-age women are not consuming the recommended daily servings of dairy foods, and therefore, have inadequate calcium intakes as well. Four focus groups were conducted with a total of 29 college women to explore their perceptions, opinions, thoughts, and feelings about dairy foods. Single, non-Hispanic white females, aged 19-22, enrolled in state-funded colleges and universities in Virginia were recruited for the study. Discussion questions addressed preferences for dairy foods, advantages and disadvantages of dairy foods, factors that influence dairy consumption, and ideas for product improvements. Focus group discussions were audio taped, transcribed by the researcher, then checked for accuracy by a Virginia Tech undergraduate student. Major themes and subthemes were identified, and results were reported in the following theme categories: 1) health and nutrition perceptions of dairy foods, 2) external influences on dairy food consumption, 3) characteristics of dairy products, and 4) ideas for product improvements. Women in this study perceived the high calcium content of dairy foods to be a health benefit. Women thought calcium was important for the prevention of osteoporosis; however, most women did not seem to perceive osteoporosis as an immediate health concern. A predominant theme throughout all focus groups was that college women thought many dairy foods were high in fat. Use of calcium supplements as well as other vitamin/mineral supplements to meet nutrient requirements was common among this sample of college women. Other factors that influenced women's dairy food choices included family influences (especially mothers), college lifestyle, and media sources. Specifically, mothers encouraged women to drink milk during childhood and to use supplements. Women's busy lifestyles at college influenced them to choose convenient dairy foods. Women's concern with body weight and image played a role in their lower fat dairy food choices. Sensory characteristics of dairy foods, particularly taste, were important to the college women's dairy food choices. Women wanted convenient and "easily accessible" dairy foods, and their ideas for product improvements included smaller package sizes, easier opening of packages, and improved availability of low fat dairy options in restaurants and dining halls. Nutrition educators should strive to emphasize the importance of adequate dairy food consumption to college women now to prevent osteoporosis in the future. Continued promotion of low fat dairy choices is important to help ensure that women receive adequate intake of calcium and other important nutrients.
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    Dairy Food Consumption in Educated, Older Women in Virginia: Use of Focus Groups to Examine Attitudes and Perceptions
    Eddy, Katherine T. (Virginia Tech, 1997-09-04)
    National studies indicate that older women have a suboptimal intake of calcium, and are not consuming the recommended daily servings of dairy foods. Three focus groups of 5-10 women were conducted to examine older women’s perceptions of dairy foods. Independent living, Caucasian women aged 65 and older were recruited from retirement communities in urban and rural areas of Virginia. Discussion questions addressed preferences for dairy foods, advantages and disadvantages of dairy foods, factors that influence dairy intake, and possibilities for product improvements. Focus group discussions were audio taped, transcribed by the facilitator, then checked for accuracy by a Virginia Tech graduate student using methods described by Krueger (1988). Both persons identified major and minor themes and organized quotations thematically. Analysis was independently conducted to verify correct interpretation of quotations. Results were reported in the following three broad themes: Positive and Negative Health Perceptions, Sensory Attributes, and External Influences. The predominant negative health perception was that many dairy foods are high in fat. Many women also associated dairy foods with cholesterol, sodium, and calories. One woman in each focus group reported that she experienced lactose intolerance. Participants believed dairy foods were a good source of calcium and other nutrients and were aware of osteoporosis and its relationship with calcium. However, calcium supplement use, particularly Tums®, was prevalent, and participants felt it was important in osteoporosis prevention. Women reported their physicians encouraged them to use calcium supplements and watch intake of dairy foods due to fat content. Women also reported receiving information from media sources such as health newsletters. Women wanted the food industry to recognize older adults as an important market. Many felt that dairy food packages, particularly cottage cheese and reduced-fat ice creams, were too large for a single person and resulted in spoilage and wasted money. Women found it difficult to locate and read expiration dates, and some expressed confusion over “Use By” and “Sell By” dates. Products, such as plastic milk cartons and zip-pack cheeses, were difficult for women with arthritic hands and diminished vision to open. Women’s comments suggested that they would be receptive to products and packaging designed and marketed to meet their needs. Appropriate recommendations are made to the dairy industry for the promotion and development of such dairy foods. Nutrition education programs for this population should continue to promote the use of low fat dairy foods and should emphasize other nutrients, such as Vitamin D and phosphorus, found in dairy foods.
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    Female Baby Boomers' Perceptions of Dairy Foods and How Their Perceptions Influence Dairy Food Choices
    Hagy, Leslie Faye II (Virginia Tech, 1998-08-17)
    Osteoporosis is a debilitating disease that afflicts an estimated 25 million Americans, especially women. Suboptimal intakes of calcium, phosphorus, and vitamin D contribute to development of osteoporosis. Results from the Third National Health and Nutrition Examination Survey (NHANES III) indicate that adult women do not meet the Recommended Dietary Allowance (RDA) for calcium. Results from other national studies indicate that adult women consume less than the recommended number of servings of dairy foods per day. Focus groups were conducted in rural and urban areas of Virginia to gain insight into middle aged women's perceptions of dairy foods. Four focus groups were conducted with a total of 39 women. The majority of the women were between the ages of 35 to 50 years; all were non-Hispanic white women. All had a minimum of a high school education, and the majority had some education beyond high school. Discussion questions addressed preferences for dairy foods, advantages and disadvantages of dairy foods, factors that influence dairy food choices, and possibilities for product improvements. Focus group discussions were audio taped and transcribed by the moderator. The moderator identified major and minor themes; women's responses were organized thematically. Results were reported in the following broad theme categories: perceptions of health and nutrition that influenced dairy food choices and factors that influenced dairy food choices. The predominant negative perception of dairy foods was that dairy foods were high in fat. Women also negatively associated dairy foods with lactose intolerance and kidney stones. The predominant positive perception of dairy foods was that dairy foods were a good source of calcium. Women also believed dairy foods were a good source of vitamins, although they were unsure of specific vitamins found in dairy foods. Participants were aware of osteoporosis, but many were not knowledgeable about risk factors or prevention related to osteoporosis. Many women used calcium supplements or vitamin-mineral supplements to help meet dietary calcium requirements. Results indicate a need for education on the role of dairy foods in osteoporosis prevention. Women's preferences for dairy foods influenced dairy food choices. Product characteristics, such as sensory attributes, convenience, cost, availability, and packaging, were mentioned as factors that greatly influenced dairy food choices. The majority of women stated that other household members influenced dairy food choices. Women also mentioned that physicians and media sources, such as magazine advertisements and television commercials, influenced their dairy food choices. Nutrition education for this population should continue to promote the view that "all foods can fit" into a healthy eating pattern. Nutrition education should be geared toward the fast paced lifestyle these women lead. Product development should focus on convenience items.
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    Folate status and milk folate concentration in lactating women
    Amanna, Karen Ruggio (Virginia Tech, 1996-12-01)
    Lactating women have an increased requirement for folate which contributes to their risk for suboptimal folate status. Although milk folate secretion appears to be maintained independent of folate intake and maternal folate status, studies with animal species have demonstrated a relationship between iron deficiency and impaired milk folate secretion. Objectives of this study were to monitor the folate status of lactating women and to examine the relationship among folate intake, dietary iron, folate status, iron status and milk folate. Seven-day dietary records, milk samples, and blood samples were collected monthly for four months from five lactating women. Dietary iron and folate was analyzed. Milk folate, serum ferritin, serum folate, and red blood cell (rbc) folate concentrations were measured. Mean folate and iron intakes were 495 ± l05μg/d and 24 ± 4 mg/d, respectively. All women had normal rbc folate and serum ferritin values during the study. Milk folate increased (p=.06) from 35± 10 μg/L in month one to 69 ± 30 μg/L in month three. Dietary and rbc folate were not significantly correlated with milk folate. There was a significant positive correlation between milk folate and serum folate (r = .48, p= .04) and between milk folate and iron intake (r=.63, p=.003). Results indicate that the folate intake in this population of lactating women was sufficient to maintain adequate folate stores. Results also suggest a relationship between iron intake and milk folate. Research is needed to determine dietary requirements during lactation and to investigate the relationship between dietary iron and milk folate.
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    Food and Nutrition-Related Beliefs, Attitudes, Practices, and Perceived Needs of Food Stamp Recipients in Virginia
    Stack, Shona C. (Virginia Tech, 1997-08-01)
    The purpose of the present study was to gain insight on the real and perceived needs of food stamp recipients for use in developing nutrition education programs. Six focus group interviews with 26 food stamp recipients were conducted in six Virginia counties. Transcripts of the meetings were analyzed to identify themes prevalent in all of the focus group interviews. Ninety-two 24-hour food recalls from a different sub-group of food stamp recipients were also analyzed for food consumption frequencies, trends in food preparation, and common food purchasing locations. A key finding was that most focus group participants made food-related decisions while in the grocery store. Explanations for incidences of food resource scarcities included beliefs that the amount of food stamps was insufficient and that poor food purchasing decisions were made. Predominant food behavior changes that had been previously attempted were decreasing consumption of fat and fried foods and reducing portion sizes. Most of the reasons for attempting those behavior changes involved a desire for weight loss. Prevalent nutrition education interests were low-fat cooking and child nutrition. Results of the 24-hour food recall analysis indicated an inadequate consumption of fruits, vegetables, whole grain cereals, and dairy products. Seventy-five percent of the subjects purchased food in a grocery store and prepared meals at home.
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    Food Cents
    Hertzler, Ann A.; Brochetti, Denise (Virginia Cooperative Extension, Virginia Tech and Virginia State University, 1995)
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    Formulating and Processing of a Nutritionally Enhanced Extended Shelf-Life Fluid Milk and Egg Mixture
    Sutton, Tracy D. Jr. (Virginia Tech, 1997-10-02)
    A milk and egg mixture was processed at 96C and 92C with 10 sec hold times and evaluated for nutritional composition, functional characteristics, and shelf-life. The process was more than sufficient to destroy Coxiella burnetti and Salmonella senftenberg which were the most heat resistant organisms of concern in processing this milk and egg mix. The spoilage organisms received 2,200 D and 425 D processes, respectively, which were more than adequate for providing a safe product and extending the shelf life of the product for seven weeks under refrigerated storage conditions. Both sweetened and unsweetened formulations were evaluated. The nutritional profile of the milk and egg mix was improved when dried eggs (solids and liquid proportion equivalent to whole egg) were replaced with dried egg white, cholesterol reduced egg yolk, and skim milk. The fat and cholesterol were reduced between 22 to 33% and 37 to 44%, respectively, in the cholesterol reduced formulation (CRF) as compared to the control formulation (CF). The protein content of the milk and egg mix was not altered by utilization of cholesterol - reduced egg yolk in the CRF as compared to the CF. Addition of beta-galactosidase decreased the lactose up to 96%. The CF were more yellow than the CRF in the mixes and baked gels (p< 0.05). There were also no difference in gel strength between the baked gels made from the two formulations. There were no significant chemical and physical changes over the seven week storage period of the product at refrigerated conditions (p< 0.05).
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    Low-income Older Adults' Needs and Preferences for Nutrition Education
    Stewart, Pamela Jr. (Virginia Tech, 1998-04-03)
    Low-income older adults are at high risk for developing diet-related chronic diseases. Nutrition education programs can improve dietary and lifestyle practices, thereby decreasing the incidence of diet-related diseases. Focus groups were conducted to gain insight into the needs and preferences of low-income older adults for nutrition education. Results were made available for use in the Smart Choices Nutrition Education Program at Virginia Tech to aid in the development of nutrition education programs. Four focus groups were conducted with a total of 35 elderly (28 females; 7 males), ages 55-90+ years, recruited from Congregate Meal Program sites in four regions of Virginia. Seventeen were African American, and 18 were non-Hispanic white. Discussion questions addressed practices for purchasing and preparing foods, importance of food to health, and preferences for education methods. The Determine Your Nutritional Health Checklist of the Nutrition Screening Initiative was used to assess nutritional risk of the elderly adults. Focus group discussions were audio-taped and written transcripts were made for use in data analysis. Themes of the discussions were identified in that analysis and reported in the following broad areas: Factors that Influenced Dietary Practices of Focus Group Participants and Perceived Needs and Preferences of Focus Group Participants for Nutrition Education. All elderly believed that food was important to their health and were interested in nutrition education. The predominant theme was the influence of a health condition on dietary practices. The elderly made food choices according to dietary restrictions imposed by their health condition. The most prevalent health conditions were chronic diseases, primarily hypertension, diabetes, and hiatal hernia. The majority (32) were at nutritional risk, with a larger number at high risk (20) than at moderate risk (12). Food preferences and sensory attributes of food also were important to them when making food choices. Some reported that convenience was important because they did not want to spend time and effort to purchase and prepare foods. Some also reported experiencing food insecurity, primarily from lack of money. The majority learned about food and cooking from family members, and only a few learned about nutrition and food choices from health professionals. Most wanted information about disease-specific food choices and preparation methods, and preferred to receive this information during group discussions because sharing ideas and opinions was an effective way to learn. Only a few were interested in television programs, while many were interested in written materials. Nutrition education programs for low-income elderly should teach these adults how to choose and prepare foods that are appealing and nutritious, as well as within dietary restrictions imposed by their health conditions. Educators should convey this information to them in group settings and distribute written materials, such as pamphlets and brochures, that outline "how-to" information.
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    Nutrient and Antinutrient Content of an Underexploited Malawian Water Tuber Nymphaea petersiana (Nyika)
    Chawanje, Chrissie Maureen (Virginia Tech, 1998-12-02)
    Nymphaea petersiana Klotzsch (Nyika) is an important wild tuber eaten in some districts of Malawi. The tubers were processed by boiling/freeze-drying(BFD) and sun-drying(USD). The tuber's nutrient and antinutrient composition was determined to produce a preliminary nutrient data base for use in sub-Saharan Africa. There was no significant difference (P > 0.05) in protein content of BFDand USD samples. Sun-dried samples were significantly (P < .05) higher in ash than boiled samples while boiled samples were significantly higher (P < .05) in crude fat and total carbohydrate. The protein content of the tubers (8.0 and 8.1 %) was higher than that of the staple maize (7.9%), African millets (unspecified) (7.5%), and polished rice (7.0%), but lower than sorghum (10.7%). Protein content was higher than tubers like cassava (1.3%), potato (2%), sweet potato (1.6%), yams (1.5%) and N. lotus (5.2). Nyika tubers have a well balanced amino acid content, limiting only in lysine. There were no significant (P > 0.05) differences in the mineral content of BFD and USD samples, except for iron, which was lower in the boiled samples. Nyika tubers have a higher calcium (1376 and 946 ug/g) and phosphorus (2250 and 2883 ug/g ) content than wild and domesticated cassava, potatoes, sweet potatoes and wild and domesticated yams. Sun-dried tubers have a higher iron content (88ug/g) than maize (20ug/g). The zinc content of tuber was higher (21and 25ug/g) than that of boiled maize flour, boiled sorghum flour, rice, cassava, and sweet potato. The predominant fatty acids in the tubers were oleic (47%), linoleic (32%), palmitic (21%) and linolenic (7%) acids. Ascorbic acid content was very low, only 0.1 and 0.003 mg/100g. Tannin content was lower (1 and 1.7 %) in the tubers than in Vulgare Pers. sorghum, DeKalb sorghum from U.S. and Kabale sorghum from Uganda. There was a significantly (P < 0.05) lower content of phytate in boiled (3.9ug/g) than in sun-dried tubers (6.0 ug/g). Phytate content of the tubers was lower than that of cooked maize flour, unrefined maize flour, cassava and sweet potato. Trypsin inhibitor activity in the tubers was reduced from 463 to 55 TIU/g tuber and chymotrypsin inhibitor activity was reduced to 50 from 267 CIU/g tuber by cooking. Nyika is a good source of iron and quality protein limiting only in lysine. Protein is comparable to staple maize and higher than root crops consumed in Malawi. It is not a good source of fat and ascorbic acid. Tannin, phytate, trypsin, and chymotrypsin inhibitor content lower than most food crops consumed in Malawi.
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    Nutrients Analysis of Preschool Lunch Menus in Virginia
    Wu, Yi-Ping (Virginia Tech, 1999-06-17)
    Child care centers are becoming much more influential in educating and caring for children because more and more families choose supplemental care for their young children in child development programs. In June 1997, Child and Adult Food Program (CACFP) served nearly 2.2 million children and provided meals to 2.6 million children in March 1998. A large number of children eat at least one and sometimes two or more of their meals at child care centers. It is imperative that nutritious and satisfying meals and snacks are served at child care centers. The purpose of this study was to examine menus planned in Head Start Program and Child Day Care Centers in Virginia and to assess if they meet the national Recommended Dietary Allowances (RDAs) standards for vitamin A, vitamin C, calcium and iron. Lunch menus for 3-5 year old children were collected from 114 CACFP staffs attending a state wide CACFP menu training session. Fifty-seven weekly menus were selected based on geographic representation to analyze vitamin A, vitamin C, calcium and iron levels by a nutritional analysis computer program. Menus were also divided into Head Start Program and Child Day Care Center for further analysis and comparison. For all 57 sites, the mean values of these lunches exceeded the one-third RDAs for vitamin A, vitamin C, and calcium; the average percentages were 198%, 121% and 134%, respectively. But the average iron level was only 63% RDAs. None of the child care centers met 100% of one-third RDAs for the lunch menus. Because dietary iron levels are consistently low, iron food sources were studied. The results showed no significant (p< 0.05) difference between the Head Start Program and Child Day Care Center. Based on the findings of this study, following the established meal pattern guidelines for the child nutrition programs did not guarantee adequate iron levels in the planned menus of the child care centers. Some foods with high iron levels should be used more often. Further research is needed for this population in implementing the appropriate dietary guideline. In addition, the menu planing, food purchasing and preparation should be part of the training programs for child care centers.
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    Nutrition Knowledge Assessment of Preschool Children
    Plum, Jane Meacham Jr. (Virginia Tech, 1997-06-02)
    A game with food and nutrition related pictures was developed to provide an opportunity for a classroom teacher to interview preschool children for assessment of nutrition knowledge concepts. Specifically, knowledge of vegetable concepts which included identification of the food, the food group, the source, preparation methods and use by the body was measured. The assessment was administered to five groups of children (ages two and one-half to five years) in preschools and child care centers in Reston, VA by high school early childhood education students. The assessment was designed to meet current criteria that assessment be teacher administered, provide useful information to the teacher, reflect the typical activities of children in the classroom and be one of a variety of assessments used. The assessment was successfully administered by the high school students working as teacher aides. The assessment gave teachers useful information about each class and individual children which could be used in curriculum planning. The assessment fit into the usual classroom activities, in this case, a games and manipulatives learning center. The assessment provided more in-depth information about children's knowledge than multiple choice tests used in previous research on nutrition knowledge, because the teachers recorded children's responses to open-ended questions. Children's responses indicated elementary understanding of food and nutrition concepts suggesting that classroom teachers need to make greater use of the variety of nutrition education materials available.
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    Starting a successful catering business
    Lastovica, Ann McDaniel, 1947-; Brochetti, Denise (Virginia Cooperative Extension, 1995)
    Provides information on how to start a catering business
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    Use the new food label to "shop smart"
    Brochetti, Denise; Scharf, Melissa (Virginia Cooperative Extension, 1994)
    The new food label can help you shop smart and make food choices for a healthful diet
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    Use the new food label to choose a diet low in fat, saturated fat, and cholesterol
    Brochetti, Denise; Scharf, Melissa (Virginia Cooperative Extension, 1994)
    Gives an overview of what to look for on food labels to make healthy choices