Proposing Minimum Quality Indices and Improving Ripening Protocol for Mangos (Mangifera Indica L.) Imported to the United States for the Improvement of Consumer Quality PDF Download
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Author: Sara González-Moscoso Publisher: ISBN: 9781321362633 Category : Languages : en Pages :
Book Description
Although the mango fruit is widely produced and consumed around the world, consumers tend to experience inconsistent fruit quality due to harvest and postharvest handling factors. Better physico-chemical characterization after harvest and the identification of parameters that better predict ripe 'ready to eat' fruit quality are required to ensure higher fruit quality in the U.S. imported mango market. The objective of this study was to corroborate the effectiveness of dry matter (DM) as a minimum quality index (MQI) for the prediction of final consumer quality of mango fruit and to propose a realistic threshold for DM that assures a fruit that meets consumer acceptance after proper ripening. Fruit of mango cultivars 'Ataulfo', 'Haden' and 'Tommy Atkins' were stored at 20 °C and >85% relative humidity for twelve days, while quality measurements were taken every two days. Compared to other attributes, DM was stable during ripening and had the strongest correlation with ripe soluble solids concentration (RSSC) (R2 = 0.72). The firmness range between 4.5 and 26.7 N was corroborated as one that would meet consumer acceptance for `ready to eat' fruit. "In store" consumer tests showed that, in general, increasing DM tended to increase consumer acceptance of imported mangos. The results support DM as a stable parameter that can be used as a MQI to precisely predict the final consumer quality of mango fruit imported to the U.S. and select the fruit that will satisfy consumers. This study proposed the following MQI for 'Ataulfo' from Brazil, 'Haden' from Mexico, 'Kent' from Peru, and 'Tommy Atkins' from Mexico, Guatemala and Ecuador: 14.4%, 12.3%, 12.0%, 13.0%, 13.0%, and 11.0% DM, respectively. However, for 'Ataulfo' and 'Kent' from Mexico and `Francis' from Haiti the MQI could only be proposed as: (less than equal to)16.9 %, (less than equal to)15.0 %, and (less than equal to)16.7 % DM, respectively. With the information collected from this experiment along with information from previous studies on mango consumer acceptance, a ripening protocol was drafted. This protocol comprises the receiving, ripening, quality evaluation, and retail store handling and marketing for imported mangos. The protocol serves as a guideline for the postharvest handling of mangos with the main goal of assuring an acceptable mango flavor experience for consumers and increase mango sales in the U.S.
Author: Sara González-Moscoso Publisher: ISBN: 9781321362633 Category : Languages : en Pages :
Book Description
Although the mango fruit is widely produced and consumed around the world, consumers tend to experience inconsistent fruit quality due to harvest and postharvest handling factors. Better physico-chemical characterization after harvest and the identification of parameters that better predict ripe 'ready to eat' fruit quality are required to ensure higher fruit quality in the U.S. imported mango market. The objective of this study was to corroborate the effectiveness of dry matter (DM) as a minimum quality index (MQI) for the prediction of final consumer quality of mango fruit and to propose a realistic threshold for DM that assures a fruit that meets consumer acceptance after proper ripening. Fruit of mango cultivars 'Ataulfo', 'Haden' and 'Tommy Atkins' were stored at 20 °C and >85% relative humidity for twelve days, while quality measurements were taken every two days. Compared to other attributes, DM was stable during ripening and had the strongest correlation with ripe soluble solids concentration (RSSC) (R2 = 0.72). The firmness range between 4.5 and 26.7 N was corroborated as one that would meet consumer acceptance for `ready to eat' fruit. "In store" consumer tests showed that, in general, increasing DM tended to increase consumer acceptance of imported mangos. The results support DM as a stable parameter that can be used as a MQI to precisely predict the final consumer quality of mango fruit imported to the U.S. and select the fruit that will satisfy consumers. This study proposed the following MQI for 'Ataulfo' from Brazil, 'Haden' from Mexico, 'Kent' from Peru, and 'Tommy Atkins' from Mexico, Guatemala and Ecuador: 14.4%, 12.3%, 12.0%, 13.0%, 13.0%, and 11.0% DM, respectively. However, for 'Ataulfo' and 'Kent' from Mexico and `Francis' from Haiti the MQI could only be proposed as: (less than equal to)16.9 %, (less than equal to)15.0 %, and (less than equal to)16.7 % DM, respectively. With the information collected from this experiment along with information from previous studies on mango consumer acceptance, a ripening protocol was drafted. This protocol comprises the receiving, ripening, quality evaluation, and retail store handling and marketing for imported mangos. The protocol serves as a guideline for the postharvest handling of mangos with the main goal of assuring an acceptable mango flavor experience for consumers and increase mango sales in the U.S.
Author: Panita Ngamchuachit Publisher: ISBN: 9781303151248 Category : Languages : en Pages :
Book Description
Mango (Mangifera indica L.) is a tropical fruit, which is becoming more popular in the global fruit market due to its unique flavor. Fresh-cut mango has the potential to become one of the fastest growing segments of the mango market. In this dissertation, fruit characterization and pre- and post-cutting treatments, 1-methylcyclopropene (1-MCP) and calcium, respecively, were investigated to improve the eating quality and shelf life of fresh-cut mangos. The spatial variation of physico–chemical properties within mangos was investigated. The results showed that the direction of ripening tended to initiate from the inside outward and from the stem end to the blossom end. Mature green mangos of 2 cultivars ('Kent' and 'Tommy Atkins') and three ripeness levels based on fruit firmness (45 N, 35 N, 25 N) were processed into fresh-cut mango cubes and stored at 5 °C for 9 days. The ripeness stage best suited for fresh-cut processing was 35 N for 'Kent' and 25 N for 'Tommy Atkins' based on ease of handling, quality maintenance, and sensory evaluation. The effect of calcium dips on quality maintenance of 'Kent' and 'Tommy Atkins' mangos, as determined instrumentally and by consumer acceptance was also evaluated. The best treatments were 0.136 M CaCl2 for 2.5 min for 'Tommy Atkins' and 0.136 M CaCl2 for 1 min dip for 'Kent' mangos. Consumers preferred fresh-cut 'Kent' mangos more than 'Tommy Atkins' mangos, possibly due to their higher SSC, TA, SSC/TA and lower development of browning. The potential for using 1-MCP as a pretreatment prior to or following hot water quarantine treatment, mandated by USDA-APHIS, was also investigated as a mechanism to slow the softening of fresh-cut mango cubes. 1-MCP treatment alone showed the greatest delay in whole mango fruit softening, for both mature green and ripe mangos. A higher 1-MCP concentration of 1.0 [mu]l l−1 for 24 h at 20 °C was required for riper fruits, whereas a concentration of 0.5 [mu]l l−1 was sufficient to delay ripening in mature green mangos. Lower efficacy of 1-MCP in delaying fruit ripening was observed in hot water treated mango fruits. However, 1-MCP treatments prior to hot water treatments resulted in a better delay in fruit softening and peel color alterations, as compared to hot water treatments alone. The application of 1-MCP as a pretreatment prior to hot water treatment could be beneficial for mangos destined for fresh cut applications, by slowing subsequent ripening of the fresh-cut mango cubes. Further research is needed to confirm that the reduced rate of softening would continue after cutting the whole, 1-MCP-treated mangos.
Author: Ompriya Makani Publisher: ISBN: 9781303443299 Category : Languages : en Pages :
Book Description
This sensory study describes the application of descriptive analysis (DA) and `in store' consumer test using six mango cultivars ("Ataulfo", "Tommy Atkins", "Kent", "Haden", "Keitt" and "Francis") imported from 6 locations (Mexico, Brazil, Guatemala, Peru, Ecuador and Haiti). In order to develop drivers of liking, controlled sensory studies using descriptive analysis (DA) techniques to describe and segregate cultivars into their predominant sensory properties were carried out by a trained taste panel. At the same time, `in store' consumer tests, using two most popular cultivars, "Ataulfo" and "Tommy Atkins", from Mexico and Brazil were executed in a supermarket by using different levels of ripe soluble solids content (RSSC). The results from this sensory study indicate that location did not influence flavor sensory and appearance attributes, and consumer acceptance when fruit were picked at the right maturity level. Each cultivar had a characteristic sensory profile that should be matched with consumer preferences. This information will help the mango industry to establish a minimum quality index for a Ripe & Ready mango program. The development of the minimum quality index will help to consistently deliver fruit of high eating quality and increase consumption for current and future consumers. The DA and `in store' data will also be used to develop drivers of liking that will facilitate cultivar evaluation and postharvest technology impact on consumer reactions by a small trained panel. Further work to determine the role of ripe titratable acidity (RTA), RSSC/RTA ratio, phenolics, and volatiles on the consumer acceptance is needed.
Author: Robert E. Hardenburg Publisher: ISBN: Category : Cold storage Languages : en Pages : 140
Book Description
Note for the electronic edition: This draft has been assembled from information prepared by authors from around the world. It has been submitted for editing and production by the USDA Agricultural Research Service Information Staff and should be cited as an electronic draft of a forthcoming publication. Because the 1986 edition is out of print, because we have added much new and updated information, and because the time to publication for so massive a project is still many months away, we are making this draft widely available for comment from industry stakeholders, as well as university research, teaching and extension staff.
Author: Martin Kellermann Publisher: World Bank Publications ISBN: 1464813728 Category : Business & Economics Languages : en Pages : 275
Book Description
In a modern world with rapidly growing international trade, countries compete less based on the availability of natural resources, geographical advantages, and lower labor costs and more on factors related to firms' ability to enter and compete in new markets. One such factor is the ability to demonstrate the quality and safety of goods and services expected by consumers and confirm compliance with international standards. To assure such compliance, a sound quality infrastructure (QI) ecosystem is essential. Jointly developed by the World Bank Group and the National Metrology Institute of Germany, this guide is designed to help development partners and governments analyze a country's quality infrastructure ecosystems and provide recommendations to design and implement reforms and enhance the capacity of their QI institutions.
Author: Nigel H. Banks Publisher: Academic Press ISBN: 0080920780 Category : Technology & Engineering Languages : en Pages : 637
Book Description
Consideration of the interactions between decisions made at one point in the supply chain and its effects on the subsequent stages is the core concept of a systems approach. Postharvest Handling is unique in its application of this systems approach to the handling of fruits and vegetables, exploring multiple aspects of this important process through chapters written by experts from a variety of backgrounds.Newly updated and revised, this second edition includes coverage of the logistics of fresh produce from multiple perspectives, postharvest handing under varying weather conditions, quality control, changes in consumer eating habits and other factors key to successful postharvest handling.The ideal book for understanding the economic as well as physical impacts of postharvest handling decisions.Key Features:*Features contributions from leading experts providing a variety of perspectives*Updated with 12 new chapters*Focuses on application-based information for practical implementation*System approach is unique in the handling of fruits and vegetables
Author: Mohammad Shamsher Ahmad Publisher: Springer ISBN: 3319211978 Category : Technology & Engineering Languages : en Pages : 279
Book Description
This book presents a comprehensive study of the handling of fresh fruits in the developing world from harvesting to the shelf. With annual losses ranging from 30-40% due to lack of knowledge on proper handling practices and value addition, this book's information on postharvest handling and quality testing is crucial for reducing these losses and improving the quality and safety of fresh fruits in these areas. With its added focus on marketing and organized retail aspects, Postharvest Quality Assurance of Fruits: Practical Approaches for Developing Countries covers the entire range of fruit handling, from transportation and packaging to quality assessment and commercial preparation. In presenting a fully comprehensive outline of the factors affecting postharvest quality and marketability of fruits, this work lays the foundation for understanding the proper storage, transportation and packaging methods to prevent losses and increase quality. With its study of prevailing marketing systems, supply chains and retail methods, the book presents the complete picture for the postharvest handling of fruits in the developing world.
Author: Publisher: World Bank Publications ISBN: 0821368958 Category : Business & Economics Languages : en Pages : 324
Book Description
This book responds to the challenge of providing a comprehensive account of quality systems for private sector development: what works and what doesnt on the ground, and why. This volume provides a thorough analysis of the diversity of institutions, linkages, and arrangements involved in quality systems, identifying success factors in countries quality strategies. It explains why quality and standards matter for export growth, for productivity, for industrial upgrading, and for diffusion of innovation, all central ingredients in improving economic growth and generating real gains in poverty reduction. It provides a detailed blue print for implementing effective National Quality Systems. Quality and Standards Matter is a valuable tool for policymakers confronted with the challenges of building trade competitiveness in the new global economy.
Author: Robert E. Paull Publisher: Cabi ISBN: Category : Business & Economics Languages : en Pages : 380
Book Description
The book is based on papers presented at a conference held in Oxford in March 1993 under the BRIDGE-COST-88 programme developed by the Commission of the European Communities. A wide range of fungi, which are pathogens of a variety of crop and ornamental plants, is covered and the book is aimed at postgraduate students and research workers in mycology and plant pathology, including those involved in routine testing of plants for quarantine or other purposes.
Author: Sara González-Moscoso
Author: Sara González-Moscoso
Author: Panita Ngamchuachit
Author: Ompriya Makani
Author: Busarakorn Mahayothee
Author: Robert E. Hardenburg
Author: Martin Kellermann
Author: Nigel H. Banks
Author: Mohammad Shamsher Ahmad
Author: 
Author: Robert E. Paull