Effect of anti-browning compounds on the quality of minimally processed avocados / Efecto de inhibidores del pardeamiento en la calidad de aguacates mínimamente procesados

1998 ◽  
Vol 4 (2) ◽  
pp. 107-113 ◽  
Author(s):  
L. Dorantes-Alvarez ◽  
L. Parada-Dorantes ◽  
A. Ortiz-Moreno ◽  
T. Santiago-Pineda ◽  
A. Chiralt-Boix ◽  
...  
Keyword(s):  
Water Activity ◽  
The Other ◽  
Response Analysis ◽  
Minimally Processed ◽  
Tetrasodium Pyrophosphate ◽  
Surface Response ◽  
Surface Response Analysis

This work is concerned with the effect of anti-browning compounds (other than sulfites) on the preservation of minimally processed avocados. Ten different anti-browning agents were tested. After 5 days of storage results showed that cystein and tetrasodium pyrophosphate preserved better the original colour than the other agents used. Surface response analysis was used to monitor the effects of different mixtures of tetrasodium pyrophosphate/cystein, water activity, and pH of the immersing solution. It was found that one of the best combinations consisted of treatment with 1% tetrasodium pyrophosphate, 0.2% cystein at a water activity (a w) of 0.80 and pH 5.5. Selected formulations gave acceptable results for colour, flavour and strength of three minimally processed avocado slices samples, after 8 days of storage

Poly-lactide-co-glycolide Microparticle Sizes: A Rational Factorial Design and Surface Response Analysis

2006 ◽  
Vol 6 (8) ◽  
pp. 2403-2407 ◽  
Author(s):  
Jocimara Ambrósio de Moraes Namur ◽  
Elaine Christine de Magalhães Cabral-Albuquerque ◽  
Wagner Quintilio ◽  
Maria Helena Andrade Santana ◽  
Mario José Politi ◽  
...  
Keyword(s):  
Factorial Design ◽  
Response Analysis ◽  
Surface Response ◽  
Surface Response Analysis

scholarly journals Physicochemical, microbiological and bioactive evaluations of ‘Araçá-Boi’ (Eugenia stipitata Mc Vaugh) pulp exposed to Gamma Irradiation

2020 ◽  
Vol 9 (8) ◽  
pp. e131985453
Author(s):  
Romário Oliveira de Andrade ◽  
Gustavo Santos de Lima ◽  
Saul Ramos de Oliveira ◽  
Ana Raquel Carmo de Lima ◽  
Auryclennedy Calou de Araújo ◽  
...  
Keyword(s):  
Vitamin C ◽  
Gamma Irradiation ◽  
Water Activity ◽  
Physicochemical Parameters ◽  
Microbiological Quality ◽  
Agricultural Practices ◽  
The Other ◽  
Brazilian Legislation ◽  
Different Doses

The aim of this research was to evaluate the physicochemical, microbiological and bioactive quality of ‘Araçá-Boi’ pulps exposed to Gamma Irradiation. Manual harvesting was done in the morning, using good agricultural practices, and fruits were packed in thermal boxes and transported to the ‘Laboratório de Armazenamento e Processamento de Produtos Agrícolas’ of the ‘Universidade Federal de Campina Grande’, to obtain the pulp. The ‘Araçá-Boi’ pulp was irradiated in the ‘Laboratório de Irradiação Gama do Centro de Desenvolvimento de Tecnologia Nuclear’ (CDTN), located at UFPE - Recife, PE, where three doses of Gamma Irradiation (2, 3, 4 kGy) were applied for later comparison with the non-irradiated sample (control). After irradiation, the microbiological, physicochemical parameters and the quantification of vitamin C and flavonoids were evaluated it can be observed that dose 6 is grouped in a set with differential characteristics of the other treatments, as it provided higher AA, pH, luminosity and water activity (Aw). It was observed that there was no microorganism development after irradiation in all analyzed treatments. It can be concluded that the different doses of Gamma Irradiation guaranteed the microbiological quality of the ‘Araçá-Boi’ pulp, remaining fit for consumption and in compliance with the Brazilian legislation.

Design of surface response analysis of KLa depending on aeration and agitation rate in a 14 L bioreactor

2010 ◽  
Author(s):  
F. Rodríguez-Gómez ◽  
M. Lozano-Contreras ◽  
M.G. Maldonado-Blanco ◽  
H.A. Luna-Olvera ◽  
C.F. Sandoval Coronado ◽  
...  
Keyword(s):  
Response Analysis ◽  
Agitation Rate ◽  
Surface Response ◽  
Surface Response Analysis

scholarly journals Optimization of dextran syntesis and acidic hydrolisis by surface response analysis

1999 ◽  
Vol 16 (2) ◽  
pp. 129-139 ◽  
Author(s):  
D.P. GUIMARÃES ◽  
F.A.A. COSTA ◽  
M.I. RODRIGUES ◽  
F. MAUGERI
Keyword(s):  
Response Analysis ◽  
Surface Response ◽  
Surface Response Analysis

scholarly journals MICROPROPAGATION OF ACONZTUM UNCINATUM: GROWTH REGULATOR AND ANTIOXIDANT SCREENING USING THE SURFACE-RESPONSE ANALYSIS METHOD

HortScience ◽  
1995 ◽  
Vol 30 (2) ◽  
pp. 186a-186
Author(s):  
CC. Lim ◽  
S.L. Kitto
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Growth Regulator ◽  
Shoot Proliferation ◽  
Response Analysis ◽  
Surface Response ◽  
The Media ◽  
Antioxidant Concentration ◽  
Initial Objective ◽  
Surface Response Analysis

Aconitum uncinatum L., a herbaceous native, is not widely available for the public because of difficulties in producing plants via conventional methods. The initial objective was to find a growth regulator combination and an antioxidant concentration that provided increased proliferation rates. Growth regulator combinations examined were BA (0, 11.1, 22.2, 44.4 μm), 2iP (0, 24.6, 49.2 μm), kinetin (0, 23.2, 46.5 μm), IAA (0, 28.5, 57.1 μm), and NAA (0, 26.9, 53.71μm). Antioxidants examined were ascorbic acid (0, 150, 500 ppm), citric acid (0, 150, 500 ppm), PVP (0, 250, 500 ppm), PVPP (0, 250, 500 ppm), and MPP (0, 0.5,1 ppm). Surface response analysis was used to select 30 (of more than 3000 possible) combinations of growth regulator or antioxidant concentrations. Experiments were subcultured every 4 weeks and terminated at 8 weeks. Total-shoot proliferation was significantly greater on media containing 44.4 μm BA + 46.5 pm kinetin. There were six antioxidant combinations that were no different from the control (150 ppm each ascorbic acid and citric acid). Further experiments looking at various BA + kinetin and antioxidant concentrations are needed to refine the media for maximal proliferation.

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