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Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)

The aril around the seeds of Gac fruit is rich in fatty acids and carotenoids (lycopene and β‐carotene). Understanding how these qualities are affected by fruit maturity at harvest may identify indices for quality assessment. Some physical and chemical properties of Gac fruit were determined for fru...

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Autores principales: Tran, Xuan T., Parks, Sophie E., Roach, Paul D., Golding, John B., Nguyen, Minh H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4779482/
https://www.ncbi.nlm.nih.gov/pubmed/27004120
http://dx.doi.org/10.1002/fsn3.291
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author Tran, Xuan T.
Parks, Sophie E.
Roach, Paul D.
Golding, John B.
Nguyen, Minh H.
author_facet Tran, Xuan T.
Parks, Sophie E.
Roach, Paul D.
Golding, John B.
Nguyen, Minh H.
author_sort Tran, Xuan T.
collection PubMed
description The aril around the seeds of Gac fruit is rich in fatty acids and carotenoids (lycopene and β‐carotene). Understanding how these qualities are affected by fruit maturity at harvest may identify indices for quality assessment. Some physical and chemical properties of Gac fruit were determined for fruit harvested between 8 and 16 weeks after pollination (WAP). Fruit respiration rates and ethylene production rates were assessed after harvest and up to 20 days in storage at 20°C. Fruit harvested at 14 WAP had the highest oil (0.27 ± 0.02 g/g DW), lycopene content (0.45 ± 0.09 mg/g FW), and β‐carotene content (0.33 ± 0.05 mg/g FW) which declined by 16 WAP. External skin color and aril TSS were indicative of oil and carotenoid contents in aril. Skin color, TSS and potentially firmness were good indices of fruit quality. Harvesting less mature fruit at 12 WAP would be practical as the fruit were firmer and more capable of transport; however, quality during postharvest ripening may be limited. Fruits continued to ripen after they were harvested and an ethylene peak in the least mature fruit may reflect a climacteric behavior but this needs further investigation.
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spelling pubmed-47794822016-03-21 Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.) Tran, Xuan T. Parks, Sophie E. Roach, Paul D. Golding, John B. Nguyen, Minh H. Food Sci Nutr Original Research The aril around the seeds of Gac fruit is rich in fatty acids and carotenoids (lycopene and β‐carotene). Understanding how these qualities are affected by fruit maturity at harvest may identify indices for quality assessment. Some physical and chemical properties of Gac fruit were determined for fruit harvested between 8 and 16 weeks after pollination (WAP). Fruit respiration rates and ethylene production rates were assessed after harvest and up to 20 days in storage at 20°C. Fruit harvested at 14 WAP had the highest oil (0.27 ± 0.02 g/g DW), lycopene content (0.45 ± 0.09 mg/g FW), and β‐carotene content (0.33 ± 0.05 mg/g FW) which declined by 16 WAP. External skin color and aril TSS were indicative of oil and carotenoid contents in aril. Skin color, TSS and potentially firmness were good indices of fruit quality. Harvesting less mature fruit at 12 WAP would be practical as the fruit were firmer and more capable of transport; however, quality during postharvest ripening may be limited. Fruits continued to ripen after they were harvested and an ethylene peak in the least mature fruit may reflect a climacteric behavior but this needs further investigation. John Wiley and Sons Inc. 2015-10-06 /pmc/articles/PMC4779482/ /pubmed/27004120 http://dx.doi.org/10.1002/fsn3.291 Text en © 2015 The Authors. Food Science & Nutrition published by Wiley Periodicals, Inc. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Tran, Xuan T.
Parks, Sophie E.
Roach, Paul D.
Golding, John B.
Nguyen, Minh H.
Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)
title Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)
title_full Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)
title_fullStr Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)
title_full_unstemmed Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)
title_short Effects of maturity on physicochemical properties of Gac fruit (Momordica cochinchinensis Spreng.)
title_sort effects of maturity on physicochemical properties of gac fruit (momordica cochinchinensis spreng.)
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4779482/
https://www.ncbi.nlm.nih.gov/pubmed/27004120
http://dx.doi.org/10.1002/fsn3.291
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