Gamma Radiation Effects on Biochemical Compojients of Puerto Rican Mangos

The effects of gamma radiation were investigated on the content of ascorbic acid, total carotenoids, total carbohydrates and titratablc acidity in five varieties of mangos grown in Puerto Rico. Irradiation with 75-Krad doses did not significantly influence biochemical components. Subsequent changes were related closely to delay in fruit ripening, and reduction of fungal spoilage, effected by the radiation pasteurization. Radiation at the 75-Krad level extended shelf life to 7 days.

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Extension of shelf-life of a vacuum-packed chilled meat product by combination of gamma radiation, ascorbic acid and sodium lactate

Radiation Physics and Chemistry ◽

10.1016/0969-806x(96)81110-8 ◽

1996 ◽

Vol 48 (3) ◽

pp. 382

Author(s):

J. Farkas ◽

É. Andrassy ◽

K. Horti

Keyword(s):

Ascorbic Acid ◽

Gamma Radiation ◽

Shelf Life ◽

Meat Product ◽

Sodium Lactate

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Pre-harvest Application of Putrescine Influences Japanese Plum Fruit Ripening and Quality

Food Science and Technology International ◽

10.1177/1082013209353242 ◽

2010 ◽

Vol 16 (1) ◽

pp. 53-64 ◽

Cited By ~ 18

Author(s):

A.S. Khan ◽

Zora Singh

Keyword(s):

Ascorbic Acid ◽

Respiration Rate ◽

Fruit Ripening ◽

Ethylene Production ◽

Titratable Acidity ◽

Soluble Solids ◽

Fruit Softening ◽

Total Carotenoids ◽

Japanese Plum ◽

Acc Content

To investigate the role of pre-harvest application of putrescine (PUT) in regulating fruit ripening and quality of early-, mid- and late-season maturing Japanese plum fruit, whole trees were sprayed with an aqueous solution containing PUT (0, 0.1, 1.0 and 2.0 mM) one week before anticipated commercial harvest for each cultivar separately. The PUT (2.0 mM) treatment reduced the respiration rate and ethylene production more than untreated fruit during fruit ripening at ambient temperature (20±1 °C). Activities of ACS and ACO enzymes, and ACC content were delayed and suppressed in all plum cultivars and these effects were more pronounced with higher PUT concentrations. PUT application reduced the fruit softening, soluble solids content, titratable acidity ratio, the levels of ascorbic acid, total carotenoids and total antioxidants in all plum cultivars. ‘Black Amber’ did not exhibit any change in fruit color parameters, while, PUT application to ‘Amber Jewel’ and ‘Angelino’ fruit, delayed the changes in chroma value and hue angle during fruit ripening. In conclusion, pre-harvest application of 2.0 mM PUT delayed the fruit ripening with reduced respiration rate, ethylene production, activities of ACS and ACO enzymes, ACC content, fruit softening, levels of ascorbic acid, total carotenoids and total antioxidants in Japanese plum.

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Rates of Cesarean Delivery Among Puerto Rican Women - Puerto Rico and the U.S. Mainland, 1992-2002

PsycEXTRA Dataset ◽

10.1037/e481912006-002 ◽

2006 ◽

Author(s):

R. Varela-Flores ◽

◽

H. Vázquez-Rivera ◽

F. Menacker ◽

Y. Ahmed ◽

...

Keyword(s):

Puerto Rico ◽

Puerto Rican ◽

Cesarean Delivery ◽

Puerto Rican Women ◽

The U.S

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A New Look at Puerto Rico and Puerto Rican Bonds

Financial Analysts Journal ◽

10.2469/faj.v11.n2.107 ◽

1955 ◽

Vol 11 (2) ◽

pp. 107-109

Author(s):

John P. Broderick

Keyword(s):

Puerto Rico ◽

Puerto Rican ◽

New Look

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A Novel Model for Implementation of Gamma Radiation Effects in GaAs HBTs

IEEE Transactions on Microwave Theory and Techniques ◽

10.1109/tmtt.2012.2221137 ◽

2012 ◽

Vol 60 (12) ◽

pp. 3693-3698 ◽

Cited By ~ 5

Author(s):

Jincan Zhang ◽

Yuming Zhang ◽

Hongliang Lu ◽

Yimen Zhang ◽

Min Liu

Keyword(s):

Gamma Radiation ◽

Radiation Effects ◽

Novel Model

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Biochemical study of attached macroalgae from the Madeira Archipelago and beach-cast macroalgae from the Canary Islands: multivariate analysis to determine bioresource potential

Botanica Marina ◽

10.1515/bot-2019-0022 ◽

2020 ◽

Vol 63 (3) ◽

pp. 283-298

Author(s):

Nuno Nunes ◽

Sofia Valente ◽

Sónia Ferraz ◽

Maria Carmo Barreto ◽

Miguel A.A. Pinheiro de Carvalho

Keyword(s):

Biochemical Study ◽

Algal Species ◽

Biochemical Properties ◽

Total Phenolic ◽

Total Carotenoids ◽

The North ◽

Madeira Archipelago ◽

Total Carbohydrates ◽

Beach Cast

AbstractFifteen attached macroalgae from the Madeira Archipelago, comprising three green, three red and nine brown algal species, as well as two beach-cast macroalgal samples, collected along the north shore of Gran Canaria, were assessed for their biochemical properties. The analysis included the determination of total minerals, total carbohydrates, protein, lipids, chlorophyll a, total carotenoids, total phenolic content, fucoxanthin and phycobilins (allophycocyanin, phycocyanin and phycoerythrin). The results showed a high variability of biochemical composition, allowing for the targetting of specific bioresources for particular purposes, including functional foods. This work provides the foundation for a biorefinery strategy implementation plan, for which specific macroalgae may be targeted for valuable and beneficial compounds.

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Capability of oxygen-scavenger sachets and modified atmosphere packaging to extend fresh barberry shelf life

Chemical and Biological Technologies in Agriculture ◽

10.1186/s40538-020-00195-3 ◽

2020 ◽

Vol 7 (1) ◽

Author(s):

Razieh Niazmand ◽

Samira Yeganehzad

Keyword(s):

Antioxidant Activity ◽

Ascorbic Acid ◽

Phenolic Compounds ◽

Shelf Life ◽

Herbal Remedy ◽

Physicochemical Characterization ◽

Modified Atmosphere Packaging ◽

Storage Period ◽

Modified Atmosphere ◽

Oxygen Scavenger

Abstract Background Barberry has long been used as an herbal remedy since ancient times which is found throughout temperate and subtropical regions of the world. Given the short harvesting season and limited shelf life of the barberry, we evaluated the possibility of using modified atmosphere packaging and oxygen-scavenger sachets to increase its storage period. For this purpose, the physicochemical characterization (antioxidant activity, anthocyanin, phenolic compounds, and ascorbic acid content, acidity, firmness, color, and decay incident) of fresh barberry samples packaged within different atmospheres was investigated over 4 weeks of storage at 4 and 25 °C. The barberries were packaged with low-density polyethylene/polyester (LDPE/PET) films under natural atmosphere (C), N2 gas (N), vacuum (V), or in the presence of an oxygen scavenger (OS). Results The results revealed that with increased storage period, the O2 and CO2 levels inside the packages decreased and increased, respectively. The antioxidant activity and amounts of anthocyanin, phenolic compounds, and ascorbic acid all decreased with increasing storage period. Among the studied atmospheres, the OS and, subsequently, V packages were most capable of maintaining the quality of fresh barberries, with the decay incidence being approximately 30 times lower inside these packages relative to the control. Increasing the storage temperature accelerated the intensity of chemical changes and decay across all samples. Conclusion The barberries inside the OS packages stored at 4 °C (and even at 25 °C) still had good sensory properties in terms of chemical properties, texture, and color after 4 weeks. Fortunately, it seems that this packaging technology makes the exportation and delayed consumption of the fresh barberry possible by maintaining its quality.

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