by Chan Mei-yao Wendy, Yu Yim-sheung Jammy. / Questionnaire in Chinese and English. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1992. / Includes bibliographical references (leaves 132-133). / abstract --- p.i / table of contents --- p.iii / LIST OF ILLUSTRATIONS --- p.v / LIST OF TABLES --- p.vi / Chapter I. --- INTRODUCTION --- p.1 / Research Objective --- p.1 / Problem Definition --- p.3 / Information Required --- p.4 / Industrial Analysis --- p.8 / Target Customers of Canned Fruits --- p.8 / Role of Hong Kong Fruit Companies in the Canned Fruits Market --- p.10 / Distribution Outlets for Canned Fruits --- p.11 / Advertising and Promotion --- p.11 / Chapter II. --- RESEARCH METHODOLOGY --- p.13 / Data Collection --- p.13 / Sampling Plan --- p.14 / Sample Characteristics --- p.16 / Research Limitations --- p.17 / Questionnaire Settings --- p.17 / Personal Interview --- p.19 / Sampling Method --- p.19 / Chapter III . --- RESEARCH ANALYSIS --- p.21 / Respondents' Attitudes towards Canned Fruits --- p.21 / Taste of the People --- p.21 / Product --- p.22 / Price --- p.25 / Distribution --- p.26 / Consumption Pattern --- p.26 / Ways of Consumption --- p.26 / "Type, Frequency and Brand of Canned Fruits Consumption" --- p.26 / The Favorite Shape of Pineapple and Peach --- p.27 / The Major Reason to Choose Particular Brands --- p.28 / Amount Spent on Canned Fruits per month --- p.29 / Brand Awareness --- p.30 / Brand Loyalty --- p.31 / Purchasing Behaviour --- p.33 / Test for Improvement in Canned Fruits --- p.37 / Chapter IV. --- RECOMMENDATIONS --- p.41 / Recommendations to Del Monte --- p.41 / Price --- p.42 / Variety of Canned Fruits --- p.42 / Recommendations to Other Brands --- p.44 / Distribution Outlets of Canned Fruits --- p.44 / Advertising and Promotion Activities --- p.45 / Recommendations to New Comers --- p.49 / Sourcing of Canned Fruits --- p.49 / Niche Strategy --- p.49 / Direct Competition with Market Leader --- p.50 / Targeting at Other Ways of Consumption of Canned Fruits --- p.52 / Distribution Outlets --- p.54 / Conclusion --- p.54 / Chapter V. --- CONCLUSION --- p.56 / APPENDIX --- p.63 / BIBLIOGRAPHY --- p.132

Thesis (M.Tech.: Food Technology)-Dept of Biotechnology, Durban University of Technology, 2007 xvi, 106 leaves / Alicyclobacillus acidoterrestris is a spore-forming spoilage micro-organism found in fruit juices whose spores are not destroyed by typical pasteurisation. Once its spores outgrow and multiply in finished juice products, they produce two volatile taint compounds namely guaiacol and 2,6-dibromophenol. In the food industry margins for errors are small and monitoring of products to avert such errors is crucial. Conventional microbiological monitoring is one such technique for spoilage micro-organisms another being automated systems which can detect taints. Both these categories were evaluated in this study with the electronic nose and gas chromatograph being the specific automated systems being assessed. Sensory evaluation was also assessed as a diagnostic tool in the detection of taints. Isolation and identification of what was thought to be A. acidoterrestris was a laborious and expensive exercise which eventually proved inconclusive. A pure culture was purchased and juices were then inoculated with two levels of A. acidoterrestris spores and incubated. Juices from each level of inoculation were evaluated at different time intervals via the above-mentioned monitoring techniques. Of the three media assessed in the microbiological method, Bacillus acidoterrestris medium (BAM) was found to be the most effective for enumerating A. acidoterrestris followed by K-medium (KM) then Orange Serum Agar (OSA). While BAM was still indicating the presence of A. acidoterrestris KM and OSA were not (counts of <10cfu/g). This illustrated that this micro-organism could be easily overlooked if KM or OSA were being used to enumerate them. Considering that many workers actually do use KM and OSA as their media of choice in enumerating A. acidoterrestris (perhaps because BAM is very tedious to prepare) the cause for concern is a real one. Assessment of the resultant taints via sensory evaluation after inoculation and incubation reveals the inability of many panellists to detect taints at levels (as assessed by GC) far above their documented threshold values. While GC is an extremely useful and powerful tool, the level of expertise and skill required to use such an instrument cannot be overlooked nor can the expense involved. With regard to the electronic nose assessment for the presence of the volatile taint compounds, an important finding was that the electronic nose indicated significant differences between test and control samples when panellists performing sensory evaluation did not. This also correlated to an interval when enumeration on OSA illustrated no A. acidoterrestris after several days of inoculation and incubation and BAM and KM did. Without implying that the electronic nose has no drawbacks, it has proved, in this instance to be a simple and easy piece of equipment to use. It can be used to detect taints produced under simulated spoilage conditions at reduced analysis times, levels of expertise, cost and energy.

Please read the abstract in the section 00front of this document / Dissertation (MSc (Agric) Horticultural Science)--University of Pretoria, 2005. / Plant Production and Soil Science / unrestricted

M.Sc.(Agric) / Department of Horticultural Sciences

Typescript, etc.

Call number: LD2668 .T4 1946 M6 / Master of Science

Call number: LD2668 .T4 1959 K46

LD2668 .T4 1965 W916 / Master of Science

Call number: LD2668 .T4 1966 N156 / Master of Science

No description available.