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The effect of freezing on microscopic structure and palatability of French-fried potatoesLyman, Shirley Catherine Marie 02 May 1960 (has links)
Graduation date: 1960
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Some physiological aspects of frozen vegetables.Maurer, Alfred R. January 1948 (has links)
No description available.
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Effects of certain calcium treatments on the quality of frozen green beansPeaslee, Mary Griebel. January 1956 (has links)
Call number: LD2668 .T4 1956 P42 / Master of Science
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Radio-frequency blanching of vegetablesSiegele, John Louis 14 May 1953 (has links)
Graduation date: 1953
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Some losses occurring when handling and storing frozen peasStino, Charles Ramzi 04 1900 (has links)
Graduation date: 1947
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Locational and historical aspects of the quick frozen vegetable processing industry of CaliforniaKetron, Robert George, 1938- January 1968 (has links)
No description available.
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Effects of maturity and blanching on carbohydrate components of frozen normal sweet (su) and supersweet (sh₂) cornSu, Shanghe 04 October 1989 (has links)
Three varieties of sweet corn (Zea mays L.) , including
two supersweet (Crisp 'N Sweet 710 and Rogers 3376) and one
normal sweet (Jubilee), were harvested at six stages of
maturity (80-72% moisture for supersweet and 75-68% moisture
for normal sweet) at three days intervals. Changes in
physical and chemical properties over the 15 day harvest
period and effects of steam blanching on carbohydrate
composition of both genotypes of sweet corn were determined.
Moisture content of the kernels decreased with
maturity. A quick microwave oven moisture method for
determining moisture content of normal sweet and supersweet
corn was evaluated and found to be a good alternative method
for the time-consuming standard AOAC vacuum oven method.
Yield (as represented by average ear weight) increased
linearly with maturity. Percent soluble solids was determined to be a satisfactory maturity index for normal
sweet corn but not for supersweet corn. The pericarp
content in the normal sweet corn Jubilee increased 25% over
the 15-day harvest period compared to a mean of 5-6% in the
supersweet varieties. Values of the shear press tests were
not significantly correlated to % moisture, and only values
of compression work showed a positive trend to increase with
maturity.
Total sugars of supersweet corn averaged 2-3 times
higher and decreased more slowly than those of normal sweet
corn in the comparable maturity range for processing.
Sucrose was the major sugar in both corn genotypes and
represented about 80% of the total sugars (9-20% dry weight)
in normal sweet corn versus 90% of the total sugars (30-45%)
in supersweet corn. Polysaccharides consisted mainly of
starch in supersweet corn and of water soluble
polysaccharide (WSP) in normal sweet corn. Normal sweet
corn contained about twice as much polysaccharides as did
supersweet corn. Percent total polysaccharides increased
with maturity. Although higher in sugars, supersweet corn
had lower % total carbohydrates than normal sweet corn due
to its low polysaccharide content.
Blanching of corn-on-the-cob for 10 minutes in 99°C
steam resulted in a significant loss of sugars. Blanching
did not significantly reduce total polysaccharides of sweet
corn. / Graduation date: 1990
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The effect of post-blanch treatment on volatiles recovered and flavor of frozen peas and green beansSwanson, Barry Grant. January 1970 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Consumers' attitudes regarding the link between frozen and fresh vegetables and health / Emdri Maria van der WaltVan der Walt, Emdri Maria January 2003 (has links)
Thesis (M.Sc. (Dietetics))--North-West University, Potchefstroom Campus, 2004.
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Consumers' attitudes regarding the link between frozen and fresh vegetables and health / Emdri Maria van der WaltVan der Walt, Emdri Maria January 2003 (has links)
Vegetables and fruit appear to confer protection against various diseases, but most adults in South Africa eat substantially less than the recommended amounts. Many barriers and factors that influence vegetable consumption have been identified in the literature. One major barrier is the perishability of vegetables. Frozen vegetables can be a useful way in encouraging greater intakes. Some consumers are, however, of the opinion that processing destroy nutrients to a large extent. There is, therefore, a lack of understanding of the freezing process. Research on the attitudes of consumers towards frozen vegetables in South Africa is limited.
Objective: The purpose of this study was to determine the attitudes of consumers regarding the link between frozen and fresh vegetables and health and the attributes of frozen vegetables. Subjects/Setting: One thousand nine hundred and ninety seven South African respondents, representative of the four major race groups of South Africa (whites, blacks, coloureds and Indians) were randomly chosen from metropolitan areas from the nine provinces in South Africa. Questionnaires, existing of 17 food-related sections, including subsections on vegetables and health, were designed by researchers in co-operation with business partners. MARKINOR, a market research company, was contracted to collect the data. Respondents were questioned regarding their attitudes towards the link between frozen and fresh vegetables and health. Statistical analysis performed: The quantitative data produced by the survey was analysed by using the StatisticaⓇ-programme in order to generate the relevant tabulations, descriptive statistics and statistical tests.
Results: Overall, the attitudes of consumers towards frozen vegetables were found to be negative. Practical and statistically significant attitude differences towards frozen vegetables were found between most variables. Results from this study revealed that different levels of education, age and gender do not have a big influence on consumer's attitudes towards frozen vegetables. However, practical and statistically significant differences were found between the various LSM (Living Standards Measure) groups, especially with regard to the convenience of frozen vegetables. Results also indicated that Indians, the age group 61+ and males were the most negative towards frozen vegetables. Almost 75% of all consumers indicated that they never eat frozen vegetables. Only 1% of consumers in the LSM group 2 own a fridge/freezer. An alarmingly 26% of all consumers indicated that they are not convinced that vegetables are healthy.
Application/Conclusions: Nutrition professionals should use these findings to target messages in health-promotion programmes to increase the overall consumption of vegetables. The use of frozen vegetables by consumers with frozen storage facilities should be promoted aggressively. Consumers also need practical advice on how to overcome the barriers to dietary change. Nutrition counseling efforts should also be aimed specifically at increasing frozen vegetable consumption among targeted subgroups, particularly Indians, males and the age group 61+. It is strongly recommended that suitable measuring instruments be developed for assessing the knowledge and attitude of South Africans
towards vegetable and fruit consumption and the ability of individuals to improve their health. The results of this study may prove to be very useful in this regard. / Thesis (M.Sc. (Dietetics))--North-West University, Potchefstroom Campus, 2004.
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