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Authentication of strawberry tree (Arbutus unedo L.) honeys from southern Europe based on compositional parameters and biological activities

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Food Bioscience 2020年 38卷

作者： Sandra María Osés Sonia Nieto Sara Rodrigo Sergio Pérez Susana Rojo María Teresa Sancho Miguel Ángel Fernández-Muiño Department of Biotechnology and Food Science Universidad de Burgos 09001 Burgos Spain

Strawberry-tree (Arbutus unedo L.) honey is expensive and difficult to characterize by melissopalinology. This study aimed to authenticate strawberry-tree (A. unedo L.) honeys from southern Europe, determining arbutin, groups of polyphenols, volatile and semivolatile compounds, as well as biological activities such as trolox equivalent antioxidant capacity, antioxidant activities against both hydroxyl (AOA) and superoxide radicals (SRS), oxygen radical absorbance capacity, anti-inflammatory activity, and antimicrobial activity against 7 microorganisms (Escherichia coli, Streptococcus mutans, Staphylococcus aureus, Aspergillus flavus, Aspergillus niger, Fusarium sp., and Penicillium commune). Arbutin, analyzed using HPLC-UV, was quantified in 83% of the samples. Polyphenols' contents were high. Norisoprenoids and benzene derivatives were the major compounds determined using gas chromatography-mass spectrometry. Theobromine was detected in 67% of samples. 2,6,6-Trimetyl-4-oxo-2-cyclohexen-1-carboxaldehyde, 3,4,5 trimethylphenol and 2-hydroxycyclopent-2-en-1-one were proposed as potential strawberry-tree floral markers. Antioxidant and anti-inflammatory activities were significant. Honeys’ extracts showed higher AOA and SRS, and better antimicrobial activities than the honeys. This study highlights the potential of strawberry-tree honeys and/or their phenolic extracts for food, pharmaceutical and cosmetic uses. Graphical abstract Download : Download high-res image (270KB) Download : Download full-size image

关键词： Strawberry-tree honey Arbutus unedo L Arbutin Polyphenols Norisoprenoids Benzene derivatives Antioxidant activities Anti-inflammatory activity Antimicrobial activities

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Diversity within Unity: Essential Principles for Teaching and Learning in a Multicultural Society

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The Phi Delta Kappan 2001年第3期83卷 200-203页

作者： James A. Banks Peter Cookson Geneva Gay Willis D. Hawley Jacqueline Jordan Irvine Sonia Nieto Janet Ward Schofield Walter G. Stephan

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Dear Paulo 1

Dear Paulo

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2015年

作者： Sonia Nieto

ISBN: (纸本)9781315635279

Dear Paulo: Letters from Those Who Dare Teach is a heartfelt response from teachers, academics, and community workers to the work of the internationally renowned educator and author Paulo Freire. From newly minted teachers terrified of facing their first day in the classroom to seasoned academics whose work has largely been inspired by Freire, this collection, accompanied by photographs of Freire with some of the letter writers, is both a loving memorial and a call to action to work for social justice, praxis, and democracy, ideals envisioned and brilliantly articulated by Paulo.

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Children's Understandings of Basal Readers

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Theory Into Practice 1989年第4期28卷 258-264页

作者： David Bloome Sonia Nieto

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Profile: The Light in Her Eyes: An Interview with Sonia Nieto

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Language Arts 2000年第2期78卷 158-164页

作者： MARY M. KITAGAWA Sonia Nieto

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Review of “Soka Education: For the Happiness of the Individual”

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Critical Inquiry in Language Studies 2012年第1-2期9卷 152-156页

作者： Sonia Nieto University of Massachusetts Amherst

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Testing the Limits

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Journal of Curriculum and Pedagogy 2011年第1期4卷 23-26页

作者： Sonia Nieto University of Massachusetts–Amherst

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Puerto Rican Students in U.s. Schools 1

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2000年

作者： Sonia Nieto

ISBN: (纸本)9780805827644;9780805827651;9780585325354;9781135682590;9781135682583

This volume--the first edited book on the education of Puerto Ricans written primarily by Puerto Rican authors--focuses on the history and experiences of Puerto Rican students in the United States by addressing issues of identity, culture, ethnicity, language, gender, social activism, community involvement, and policy implications. It is the first book to both concentrate on the education of Puerto Ricans in particular, and to bring together in one volume, the major and emerging scholars who are developing cutting-edge scholarship in the field. Puerto Rican Students in U.S. Schools: • features both scholarly chapters (conceptual and research studies) and reflective essays, as well as two poems, • combines broad overview studies with classroom practice and social action, and • includes chapters that trace the history of the education of Puerto Ricans in U.S. schools in general and its history in New York City, and one chapter on return migrants.

关键词： Puerto Ricans--Education--United States Puerto Ricans--United States--Social conditions

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ChemInform Abstract: Orthometallation as a Strategy in Pd‐Mediated Organic Synthesis

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ChemInform 2012年第5期43卷

作者： David Aguilar Luciano Cuesta Sonia Nieto Elena Serrano Esteban P. Urriolabeitia Fac. Cienc. Inst. Cienc. Mater. Aragon CSIC-Univ. Zaragoza E-50009 Zaragoza Spain Fac. Cienc. Inst. Cienc. Mater. Aragon CSIC-Univ. Zaragoza E-50009 Zaragoza Spain Fac. Cienc. Inst. Cienc. Mater. Aragon CSIC-Univ. Zaragoza E-50009 Zaragoza Spain Fac. Cienc. Inst. Cienc. Mater. Aragon CSIC-Univ. Zaragoza E-50009 Zaragoza Spain Fac. Cienc. Inst. Cienc. Mater. Aragon CSIC-Univ. Zaragoza E-50009 Zaragoza Spain

Review: 202 refs.

关键词： organic chemistry, review reactions of organo‐metal compounds catalysis, phase‐transfer catalysis

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Diversity, Globalization, and Education: What Do They Mean for Teachers and Teacher Educators?

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Kappa Delta Pi Record 2013年第3期49卷 105-107页

作者： Sonia Nieto School of Education at University of Massachusetts Amherst

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