Browsing by Author "MARTIN, RS"

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    ETHANOL EXTRACTION OF RED-PEPPER - 3 KINETIC-STUDIES AND MICROSTRUCTURE
    (1987) AGUILERA, JM; ESCOBAR, GA; DELVALLE, JM; MARTIN, RS
    A three-parameter kinetic equation was developed for ethanol extraction of oleoresin from dry red peppers under different solute to solvent ratios, particle sizes and condition of structural damage. The model distinguished two main mechanisms of extraction: a fast, washing step and a diffusion-controlled process. Flaking and, to a lesser extent, blanching induced significant cellular damage resulting in more oleoresin being washed, a faster extraction rate and a higher final concentration in the solvent, compared to untreated material. The activation energy for extraction derived from the study was 6.1 kcal/mol, typical of diffusion-controlled processes. Light micrographs related microstructure to variations in extraction parameters.
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    FOOD, AGRICULTURAL AND MARINE BIOTECHNOLOGY IN CHILE
    (ELSEVIER SCIENCE BV, 1993) AGUILERA, JM; AGOSIN, E; MARTIN, RS
    Economic segments with highest growth rates in Chile are those based on renewable resources like agriculture (fruits and vegetables), marine and forest products. Opportunities for biotechnology are based on a sound scientific base at universities, adequate funding and incipient industry-academia relationships. However, there is an urgent need to develop the engineering capabilities required to scale-up processes and to design, build and operate industrial biotechnology plants.
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    STEAM HYDROLYSIS OF PINE (PINUS-RADIATA) SAWDUST
    (1985) AGUILERA, JM; MARTIN, RS