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Master's Dissertation
DOI
10.11606/D.11.2014.tde-19032014-110640
Document
Author
Full name
Thaís Helena de Araujo
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2014
Supervisor
Committee
Melo, Paulo Cesar Tavares de (President)
Pádua, Joaquim Gonçalves de
Spoto, Marta Helena Fillet
Title in Portuguese
Produtividade de cultivares de batata e atributos de qualidade para processamento industrial nas formas de palha e chips
Keywords in Portuguese
Absorção de gordura
Açúcares redutores
Cor das fritas
Fritura
Matéria seca
Rendimento industrial
Solanum tuberosum L.
Abstract in Portuguese
O mercado brasileiro de processamento de batata tem mostrado expressivo crescimento nos ultimos anos. No entanto, sua expansao e condicionada pelo suprimento de materia-prima adequada ao processamento industrial. As principais industrias de batata frita priorizam cultivares aptas para cada forma de processamento, pois a escolha correta da cultivar contribui para a reducao do custo de producao e para o aumento do rendimento e da qualidade do produto final. O objetivo dessa pesquisa foi estudar a eficiencia produtiva, a aptidao culinaria e as caracteristicas das cultivares de batata quando processadas na forma de palha e chips. Avaliou-se nove cultivares de batata: Agata, Almera, Arizona, Caruso, Destiny, Excelence, Fontane, Markies e Saviola. 'Agata' e 'Almera' foram utilizadas como cultivares nao aptas para fritura e 'Fontane' e 'Markies' como cultivares recomendadas para fritura. O ensaio foi conduzido no periodo de janeiro a maio de 2013, nas condicoes ambientais de Nova Resende, na regiao Sudoeste de Minas Gerais. As cultivares Arizona, Caruso, Agata e Markies exibiram o maior potencial produtivo e, junto a Saviola, a maior producao de tuberculos comerciaveis. Os teores mais elevados de materia seca foram exibidos por 'Destiny' e 'Caruso' (superior a 20%), seguidas por 'Excelence', 'Fontane' e 'Markies' (17 a 18%). 'Caruso' proporcionou o maior rendimento de fritura em ambas as formas de processamento. As cultivares Destiny, Excelence (ambas com cor amarela extremamente clara apos a fritura), e Caruso (cor dourada) na forma de palha; e Caruso e Destiny (cor amarela clara a dourada) na forma de chips apresentaram baixos teores de acucares redutores. Entre as cultivares avaliadas a maior eficiencia produtiva de materia-prima com aptidao para fritura foi exibida por 'Caruso', 'Destiny' e 'Excelence', sendo que todas sao aptas ao processamento na forma de palha. Ja na forma de chips somente 'Destiny' e 'Caruso' proporcionaram fritas adequadas.
Title in English
Yield efficiency and industrial attributes of potatoes cultivars for shoestring and chips
Keywords in English
Solanum tuberosum L.
Chips potato
Dry matter content
Industrial efficiency
Potatoes' fat absorption
Reducing sugar
Straw potato
Abstract in English
There is an increasing market for potato processing in Brazil, and the expansion of the potato industry can only be sustained if good quality product supplies of raw material are available. To reduce production costs and increase industrial efficiency, the industry must choose appropriated cultivars for each kind of product. This research investigated the tuber yield, frying aptitude, and the potato quality attributes for shoestring and chips. Nine potatoes cultivars were evaluated: Agata, Almera, Arizona, Caruso, Destiny, Excelence, Fontane, Markies and Saviola. 'Agata' and 'Almera' were considered unfit for frying, 'Fontane' and 'Markies' with frying standards. The trial ran from January to May 2013, in the south-west region of Minas Gerais State, Brazil. The cultivars Arizona, Caruso, Agata and Markies exhibited higher yield potential. These cultivars and Saviola obtained the highest marketable tubers. 'Destiny' and 'Caruso' showed the highest dry matter contents (higher than 20%) and were followed by 'Excelence', 'Fontane' and 'Markies' (17- 18%). 'Caruso' showed greater industrial efficiency for shoestring and chips. 'Destiny', 'Excelence' (extra light fries) and Caruso (medium light) for shoestring, and Caruso and Destiny (extra light to medium light) for chips showed low contents of reducing sugars. It was concluded that 'Destiny', 'Excelence' and 'Caruso' outperformed all other cultivars in terms of yield. Besides, these varieties also displayed aptitude for shoestring frying. On the other hand, 'Destiny' and 'Caruso' were apt to frying as chips.
 
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Publishing Date
2014-03-31
 
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