159 research outputs found
JORDAN LANDES and RICHARD ESPLEY, eds., Radical Collections: Re-Examining the Roots of Collections, Practices and Information Professions
No full textRadical Collections: Re-Examining the Roots of Collections, Practices and Information Professions. Jordan Landes and Richard Espley, eds. London: Senate House Library, 2018. xii, 82 pp. ISBN 978-1-913002-01-
Radical Collections: Re-examining the roots of collections, practices and information professions
No full textDo archivists ‘curate’ history? And to what extent are our librarians the gatekeepers of knowledge?
Libraries and archives have a long and rich history of compiling ‘radical collections’- from Klanwatch Project in the States to the R. D. Laing Archive in Glasgow- but a re-examination of the information professions and all aspects of managing those collections is long overdue.
This book is the result of a critical conference held at Senate House Library in 2017. The conference provided a space to debate the issues and ethics of collection development, management and promotion.
This book brings together some key papers from those proceedings. It shines a light on pressing topical issues within library and information services (LIS)- to encompass selection, appraisal and accession, through to organisation and classification, and including promotion and use. Will libraries survive as victims of neoliberal marketization? Do we have a responsibility to collect and document ‘white hate’ in the era of Trump? And how can a predominantly white (96.7%) LIS workforce effectively collect and tell POC histories
Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
No full textRichardson, Alistair T., Cho, Jung, McGhie, Tony K., Larsen, David S., Schaffer, Robert J., Espley, Richard V., Perry, Nigel B. (2020): Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris). Phytochemistry (112297) 173: 1-9, DOI: 10.1016/j.phytochem.2020.112297, URL: http://dx.doi.org/10.1016/j.phytochem.2020.11229
Fig. 4. 1H in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
No full textFig. 4. 1H NMR spectra (400 MHz, D O) of a crab apple extract fraction (I) and sucrose (II). The circled signal was consistent with the anomeric proton of a β-AAG.Published as part of Richardson, Alistair T., Cho, Jung, McGhie, Tony K., Larsen, David S., Schaffer, Robert J., Espley, Richard V. & Perry, Nigel B., 2020, Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris), pp. 1-9 in Phytochemistry (112297) 173 on page 4, DOI: 10.1016/j.phytochem.2020.112297, http://zenodo.org/record/829446
Fig. 1 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
No full textFig. 1. Structures of AA (1) and the only known naturally occurring derivatives in plants, 2-O-β-D-glucopyranosyl L-ascorbic acid (2) and 6-O-β-D-glucopyranosyl L-ascorbic acid (3). Synthetic 2-O-α-D-glucopyranosyl L-ascorbic acid (4) is commonly used in cosmetic products.Published as part of Richardson, Alistair T., Cho, Jung, McGhie, Tony K., Larsen, David S., Schaffer, Robert J., Espley, Richard V. & Perry, Nigel B., 2020, Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris), pp. 1-9 in Phytochemistry (112297) 173 on page 2, DOI: 10.1016/j.phytochem.2020.112297, http://zenodo.org/record/829446
Bioactives in Fruit:Health Benefits and Functional Foods
No full textApples are a global commodity and are considered to impart important dietary health properties. Apple fruit contain a number of key bioactive compounds with evidence of synergistic activity. A number of the bioactives are pigment or pigment-related compounds and the levels vary according to genotype and may be governed by developmental, environmental or interventional factors.
This chapter summarises the major bioactive classes present in apple and pear. It examines the current understanding of bioavailability and will consider the empirical evidence for their activity. A description of bioactive biosynthesis and regulation, and potential strategies for bioactive improvement will be made
Fig. 8 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
No full textFig. 8. The downfield regions of the 1H NMR spectra for acetylated ascorbyl glycosides (structures in Fig. 7.). I. Peracetyl galactoside 9a, II. Acetylated and purified ascorbyl glycoside from crab apples, III. Peracetyl glucoside 9.Published as part of Richardson, Alistair T., Cho, Jung, McGhie, Tony K., Larsen, David S., Schaffer, Robert J., Espley, Richard V. & Perry, Nigel B., 2020, Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris), pp. 1-9 in Phytochemistry (112297) 173 on page 6, DOI: 10.1016/j.phytochem.2020.112297, http://zenodo.org/record/829446
Fig. 7 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
No full textFig. 7. Acetylation of 2 under basic conditions gave the unsaturated glycoside 8, but acidic conditions led to the successful acetylation of both 2 and 2a. I. Ac2O, pyridine, 0 ̊C, overnight, 44%. II. Ac2O, HClO4, 0 ̊C, 1 h, 71% (9) and 73% (9a) yield.Published as part of Richardson, Alistair T., Cho, Jung, McGhie, Tony K., Larsen, David S., Schaffer, Robert J., Espley, Richard V. & Perry, Nigel B., 2020, Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris), pp. 1-9 in Phytochemistry (112297) 173 on page 5, DOI: 10.1016/j.phytochem.2020.112297, http://zenodo.org/record/829446
Fig. 3 in Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris)
No full textFig. 3. LC-MS chromatograms (Instrument B, method I) of crab apple extract, commercial 2-O-α-D-glucopyranosyl L-ascorbic (4), and two AAGs produced by chemical synthesis, 2-O-β-D-glucopyranosyl L-ascorbic (2) and 2-O-β-D-galactopyranosyl L-ascorbic (2a). The traces are extracted ion chromatograms for m/z 337 [M – H]-. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)Published as part of Richardson, Alistair T., Cho, Jung, McGhie, Tony K., Larsen, David S., Schaffer, Robert J., Espley, Richard V. & Perry, Nigel B., 2020, Discovery of a stable vitamin C glycoside in crab apples (Malus sylvestris), pp. 1-9 in Phytochemistry (112297) 173 on page 3, DOI: 10.1016/j.phytochem.2020.112297, http://zenodo.org/record/829446
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