This research focuses on the drying kinetics of industrial pineapple processing waste a flat plate, revealing two-phase process: an initial phase with constant rate followed by decreasing rate. During phase, convective mass transfer coefficient, influenced temperature variations from 40 to 70 °C, ranged 5.69 × 10−7 2.79 m s−1. The study introduced novel approach modeling applying equations derived Fick equation. process involved determining activation energy and thermodynamic properties...

Goat milk is still an underexploited product, mainly due to technical hurdles. Conversion into powder by spray drying can ensure product quality and safety, but un-optimized processing causes losses on value. Therefore, our work intended study the effects of goat using fundamental parameters. A set 12 experiments were conducted varying outlet temperature, feed flow rate so different kinetics tested. The process presented yields ranging from 41 62.5%, benefitting lower relative humidity...

Abstract The drying process is an essential step in the postharvest of grains. objective this research was to study kinetics chickpeas ( Cicer arietinum L.), by introducing a new approach simplify Fick equation. Drying temperatures 40, 50, 60, 70, and 80°C were used hot air convective dryer dry thin‐layers chickpeas. mathematical models (Fick, modified Henderson & Pabis, Page, Cavalcanti‐Mata) fitted experimental data. Using effective diffusivity calculated from each model, activation...

The antioxidant and anti-inflammatory properties of Malpighia emarginata D.C (acerola) Camellia sinensis L. (green tea) have been studied, particularly as an alternative in medicinal approach for different physio pathological conditions. Here we develop powder blend formulated with both which the composition higher content ascorbic acid epigallatocathechin-3-gallate respectively. Using conditions microencapsulation biocompounds, performed production through spray-drying process. After,...

Os métodos atualmente utilizados para realização de análise sensorial têm deixado muito a desejar por não traduzir satisfatoriamente os resultados. Diante deste problema, analisou-se possibilidade introdução um fator que medisse o índice concordância dos provadores sobre determinado aspecto analisado. Para validação coeficiente, foi avaliada entre julgadores na três diferentes amostras suco pinha (Annona squamosa L.): uma constituída apenas do sem leite e duas com concentrações pinha/leite....

Abstract Industrialization of goat milk is critical to meet increasing demand. For process optimization and proper preservation the product, information given by sorption isotherms can be fundamental. Therefore, objective this work was determine powder use that build a design space for spray drying process. By fitting different mathematical models (GAB, Cavalcanti Mata, Thompson, Oswin) experimental data, thermodynamic data also determined as function equilibrium water content. The results...

Mulatto beans (Phaseolus vulgaris L.) require proper drying for safe transport and storage. To support the process design, objective of this work was to determine mass transfer thermodynamic properties mulatto bean. were dried under different convective conditions from an initial moisture content 25% (w.b.) until its equilibrium drying. Using fundamental empirical models, considering bean as a sphere, constants effective diffusivity inside product determined at each temperature. Then, using...

O presente trabalho teve como objetivo avaliar a qualidade fisiológica de sementes pinhão manso armazenadas em nitrogênio líquido, temperatura -196ºC e no vapor -170ºC, por períodos 0, 30, 60 90 dias. As foram botijões criogênicos, que mantêm o nas fases líquida vapor. Os parâmetros avaliados germinação vigor obtidos 14º dia depois da semeadura. delineamento estatístico foi inteiramente casualizado, empregando-se duas temperaturas (-170ºC -196ºC) quatro crioconservação (0, dias). Foram...

Lactose-free milk powders are an interesting topic, as the industry still struggles with enhanced stickiness of material. To better understand this industrial scale spray-dryer was used to assess influence process parameters on powder properties lactose-free milk. A simple design experiments conducted varying inlet temperature in combination atomization flow rate. The intention set different driving forces for drying surfaces mass transport. Yield is typically bottleneck, but from results,...

Neste trabalho, objetivou-se determinar a higroscopicidade do urucum na forma de extrato seco. estudo foram obtidas as atividades água seco para temperaturas 10 50ºC e teores entre 6 22% base úmida. A metodologia empregada determinações foi o método dinâmico em que se utilizou equipamento Thermoconstanter Novasina TH-2. Para os resultados experimentais aplicaram-se equações propostas por Henderson modificada Thompson Cavalcanti Mata Peleg. Por meio das análises dos parâmetros encontrados...

Based on mass and energy balance equations data collected in specialized bibliographies, it was proposed a methodology for modeling of an ice bank thermal storage at low temperature to be used milk cooling. The obtained by the arrangement were design installation real system, which tested collect compare with estimated. terms prediction formation, bank, water capacity selected refrigeration system prove adequacy arrangement, showing that can as tool sizing solid smooth pipe coils, good approximation.

Acerola has acquired great importance due to its high vitamin C content and potential for industrialization. However, during processing, a quantity of waste (seed bagasse) is generated, mainly from pulp processing. These residues can be used as new sources food with added value contribute positively the reduction environmental impacts. Therefore, this research aimed add acerola by-product through development functional yogurt. To develop research, complete 2² Factorial Planning Response...

The objective of this research was to study the drying kinetics passion fruit seeds, which are a byproduct industrial processing fruit, with potential produce byproducts such as oil and flour. After drying, seeds were directed for cold-press extraction, quantification fatty acids performed. Following residues underwent grinding process flour, characterized in terms its nutritional aspects. conducted using an experimental forced convection dryer controlled temperatures 40, 50, 60, 70 °C, air...

O objetivo deste trabalho foi estudar a cinética de secagem em camada fina dos grãos guandu submetidos diversas condições secagem, por meio diferentes modelos matemáticos. Com o modelo Fick, determinou-se difusividade efetiva e energia ativação. Para tal, foram utilizadas amostras 200 g com teor água inicial 25% (b.u.), as quais secas um secador experimental leito fixo, ajustado para operar nas temperaturas 40, 50, 60 70 °C velocidade do ar 1,0 m s–1. A cada temperatura, realizada até...

A polpa de cajá tem sido exportada da região Nordeste para todo o Brasil, e uma das maneiras conservá-la é processando-a armazenado-a na forma congelada. Durante processamento, existem dois fatores que favorecem a qualidade do produto ser armazenado: rapidez com congelado adição açúcar como dificultar ação microbiológica. Na linha processo, algumas propriedades termofísicas, calor específico densidade, se alteram as temperaturas negativas teor sólidos solúveis totais; dessa forma,...

Neste trabalho se objetivou avaliar a crioconservação de sementes algodão. Inicialmente determinou o teor água limite para (TALC); esta determinação as foram imersas em nitrogênio líquido durante cinco dias e, após este período, descongeladas e submetidas ao teste germinação vigor. O delineamento estatístico empregado foi inteiramente casualizado com arranjo fatorial. Utilizou-se um lote previamente determinado diferentes cultivares, partir do qual procedeu seu armazenamento no vapor...

This research aimed to obtain information on hydrated red rice at different temperatures (45, 55, 65 and 75 °C) for 7 hours. During the hydration process, structural morphological modifications of were observed, as well kinetics by Peleg (1988), Cavalcanti-Mata & Duarte (2018) Cavalcanti Mata models. There performed X-ray diffraction (XRD) scanning electron microscopy (SEM) analysis in order identify type crystallinity images referring surfaces starch granules particles. The results...