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7 results on '"Leonard Eaton"'

1. Characterization of Changes in Polyphenols, Antioxidant Capacity and Physico-Chemical Parameters during Lowbush Blueberry Fruit Ripening

Author

Lara Gibson, H. P. Vasantha Rupasinghe, Charles F. Forney, and Leonard Eaton

Subjects
wild blueberry, Vaccinium angustifolium, fruit maturity, polyphenols, physico-chemical parameters, antioxidants, organic acids, sugars, Therapeutics. Pharmacology, RM1-950
Abstract

Changes in major polyphenols, antioxidant capacity, and selected physico-chemical parameters were examined in lowbush blueberry during fruit ripening. Polyphenols (phenolic acids, flavonols, flavan-3-ols, and anthocyanins), density, soluble solid content, pH, titratable acidity, sugars, organic acids, and antioxidant capacity were determined in fruits of four maturities: green, pink/red, blue, and over-mature. Highest concentrations of flavonols, flavan-3-ols, and phenolic acids were in green fruits: 168 ± 107, 119 ± 29 and 543 ± 91 mg/100 g dry weight (DW) respectively. Highest anthocyanin levels were found in blue and over-mature fruits (1011–1060 mg/100 DW). Chlorogenic acid was the most abundant phenolic acid and quercetin-3-O-galactoside the most abundant flavonol in all maturities. Epicatechin was the most abundant flavan-3-ol in green fruits (80 ± 20 mg/100 DW), and catechin was the most abundant in other maturity stages. Increase of glucose and fructose and decrease of organic acids were observed during fruit ripening. Among six organic acids found, quinic acid (1.7–9.5 mg/100 mg DW) was the most abundant throughout the fruit ontogeny. Soluble solids, pH, and density increased with maturity while, titratable acidity decreased. These findings can be helpful in optimizing harvest and processing operations in lowbush blueberry fruits.

Published
2013
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2. Letters

Author

Leonard Eaton, Donald Leslie Johnson, Rowland Mainstone, Rabun Taylor, and Nicholas Adams

Subjects
History, Visual Arts and Performing Arts, Architecture
Published
1996

4. Proceedings of the Ninth North American Blueberry Research and Extension Workers Conference

Author

Leonard Eaton, Charles Forney, Leonard Eaton, and Charles Forney

Subjects
Blueberries--Congresses, Blueberries--North America--Congresses
Abstract

Improve yield and quality to give consumers the best blueberries on the market! Proceedings of the 9th North American Blueberry Research and Extension Workers Conference presents the current status of the blueberry industry and recent developments in the biology, breeding, and production of blueberries throughout all of North America. In t

Published
2004

5. The use of microplankton in resolving stratigraphical problems in the Eocene of the Isle of Wight

Author

Geoffrey Leonard Eaton

Subjects
geography, geography.geographical_feature_category, biology, Dinoflagellate, Acritarch, Geology, biology.organism_classification, Foraminifera, Sequence (geology), Paleontology, Stage (stratigraphy), Cliff, Pebble, Bay
Abstract

THE FIRST STAGE in this investigation of the microplankton (dinoflagellate cysts and acritarchs) of the Bracklesham Beds of the Isle of Wight has involved the re-examination of the classic Eocene cliff sections at Whitecliff Bay in the east and Alum Bay in the west. Fisher’s concept of the type section of the Bracklesham Beds at Whitecliff Bay (Fisher 1862) formed the basis of the present study, although his interpretation of the lithological divisions has been slightly modified. At Alum Bay the Bagshot and Bracklesham Beds have been redefined. Several breaks have been noted in the sequence, all but one of which are succeeded by a pebble bed. Rich microplankton assemblages have been recovered from the Bracklesham Beds of both sections. Mollusca and Foraminifera are essentially restricted to the marine clays and greensands. Microplankton also occur in these sediments and in the ‘laminated beds’ (Fisher 1862, p. 67). This difference in distribution is particularly significant at Alum Bay where all but the highest 16 metres (52 feet) of the Bracklesham Beds were previously thought to be devoid of marine fossils. The stratigraphical ranges of selected microplankton species have been used to define five microplankton zones in the type section of the Bracklesham Beds at Whitecliff Bay. All five zones have been recognized in the redefined Bracklesham Beds at Alum Bay, and the divisions within the Bracklesham Beds of both sections have been correlated for the first time. As a result of this correlation the following conclusions were reached concerning the section

Published
1971

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