Nutraceuticals and Human Health The Food-to-supplement Paradigm Food Chemistry, Function and Analysis Series editors: Gary Williamson, University of Leeds, UK Alejandro G. Marangoni, University of Guelph, Canada Juliet A. Gerrard, University of Auckland, New Zealand Titles in the series: 1: Food Biosensors 2: Sensing Techniques for Food Safety and Quality Control 3: Edible Oil Structuring: Concepts, Methods and Applications 4: Food Irradiation Technologies: Concepts, Applications and Outcomes 5: Non-extractable Polyphenols and Carotenoids: Importance in Human Nutrition and Health 6: Cereal Grain-based Functional Foods: Carbohydrate and Phytochemical Components 7:SteviolGlycosides:Cultivation,Processing,AnalysisandApplicationsinFood 8: Legumes: Nutritional Quality, Processing and Potential Health Benefits 9: Tomato Chemistry, Industrial Processing and Product Development 10: Food Contact Materials Analysis: Mass Spectrometry Techniques 11: Vitamin E: Chemistry and Nutritional Benefits 12: Anthocyanins from Natural Sources: Exploiting Targeted Delivery for Improved Health 13:CarotenoidEstersinFoods:Physical,ChemicalandBiologicalProperties 14: Eggs as Functional Foods and Nutraceuticals for Human Health 15: Rapid Antibody-based Technologies in Food Analysis 16:DNATechniquestoVerifyFoodAuthenticity:ApplicationsinFoodFraud 17: Advanced Gas Chromatography in Food Analysis 18: Handbook of Food Structure Development 19: Mitigating Contamination from Food Processing 20: Biogenic Amines in Food: Analysis, Occurrence and Toxicity 21: Nutrition and Cancer Prevention: From Molecular Mechanisms to Dietary Recommendations 22: Health Claims and Food Labelling 23: Nutraceuticals and Human Health: The Food-to-supplement Paradigm How to obtain future titles on publication: Astandingorderplanisavailableforthisseries.Astandingorderwillbring delivery of each new volume immediately on publication. For further information please contact: BookSalesDepartment,RoyalSocietyofChemistry,ThomasGrahamHouse, Science Park, Milton Road, Cambridge, CB4 0WF, UK Telephone: þ44 (0)1223 420066, Fax: þ44 (0)1223 420247, Email: [email protected] Visit our website at www.rsc.org/books Nutraceuticals and Human Health The Food-to-supplement Paradigm Edited by Paul A. Spagnuolo University of Guelph, Canada Email: [email protected] FoodChemistry,FunctionandAnalysisNo.23 PrintISBN:978-1-78801-416-8 PDFISBN:978-1-83916-057-8 EPUBISBN:978-1-83916-058-5 PrintISSN:2398-0656 ElectronicISSN:2398-0664 AcataloguerecordforthisbookisavailablefromtheBritishLibrary rTheRoyalSocietyofChemistry2020 Allrightsreserved Apartfromfairdealingforthepurposesofresearchfornon-commercialpurposesorfor privatestudy,criticismorreview,aspermittedundertheCopyright,DesignsandPatents Act1988andtheCopyrightandRelatedRightsRegulations2003,thispublicationmaynot bereproduced,storedortransmitted,inanyformorbyanymeans,withouttheprior permissioninwritingofTheRoyalSocietyofChemistryorthecopyrightowner,orinthe caseofreproductioninaccordancewiththetermsoflicencesissuedbytheCopyright LicensingAgencyintheUK,orinaccordancewiththetermsofthelicencesissuedbythe appropriateReproductionRightsOrganizationoutsidetheUK.Enquiriesconcerning reproductionoutsidethetermsstatedhereshouldbesenttoTheRoyalSocietyof Chemistryattheaddressprintedonthispage. Whilstthismaterialhasbeenproducedwithallduecare,TheRoyalSocietyofChemistry cannotbeheldresponsibleorliableforitsaccuracyandcompleteness,norforany consequencesarisingfromanyerrorsortheuseoftheinformationcontainedinthis publication.Thepublicationofadvertisementsdoesnotconstituteanyendorsementby TheRoyalSocietyofChemistryorAuthorsofanyproductsadvertised.Theviewsand opinionsadvancedbycontributorsdonotnecessarilyreflectthoseofTheRoyalSocietyof Chemistrywhichshallnotbeliableforanyresultinglossordamagearisingasaresultof relianceuponthismaterial. TheRoyalSocietyofChemistryisacharity,registeredinEnglandandWales, Number207890,andacompanyincorporatedinEnglandbyRoyalCharter (RegisteredNo.RC000524),registeredoffice:BurlingtonHouse,Piccadilly, LondonW1J0BA,UK,Telephone:þ44(0)2074378656. Visitourwebsiteatwww.rsc.org/books PrintedintheUnitedKingdombyCPIGroup(UK)Ltd,Croydon,CR04YY,UK Preface On my first day as an Assistant Professor, I was tasked with designing a brand new course. With absolutely no idea or training on how to do that I thought–theremustbeatextbookonthesubject.Longstoryshort,Ididnot find what I was looking for. Fast forward several years later and now an Associate Professor at a different institution, I still find myself looking for that textbook. Having been co-instructor for an upper-year course in Functional Foods and Nutraceuticals for several years now, I constantly find myselfscramblingtofindrelevant,high-qualityandup-to-dateresearchthat will help to explain the convoluted and often frustrating world of dietary- supplements/nutraceuticals.Thisdrovemetoputtogetherthatelusivebook that I had been searching for. Iwantedtodosomethingthatcoveredallaspectsofnutraceuticals.Iwanted it to be more than just a resource that helps to uncover the fundamental questionthatthoseofuswhotakesupplementsask–willitactuallyhelpme? Or, in more appropriate terms, what is the evidence that supports its use? Whilefundamentalandoverarching,thisparticularquestionoftenneglectsa number of facets of this topic and overlooks key areas that are central to the quality of the actual product. Research summarizing whether a product per- forms according to the purported claims without question has merit, but overlooks how the product goes from plant/food-to-pill, how processing can alter bioactive structure and function, the regulations around claims and de- velopment, and what happens when that pill finally gets consumed. All of thesefactorsplayacrucialroleinansweringthatfundamentalquestion.Thus, thepurposeofthisbookwasn’tjusttohelpmefindthatbook,butwasalsoto create an ultimate resource that will help explain the full process by which nutraceuticals go from plant or food to a health-improving pill. Paul A. Spagnuolo FoodChemistry,FunctionandAnalysisNo.23 NutraceuticalsandHumanHealth:TheFood-to-supplementParadigm EditedbyPaulA.Spagnuolo rTheRoyalSocietyofChemistry2020 PublishedbytheRoyalSocietyofChemistry,www.rsc.org v Dedication To: My nonni: Gennaro & Maria and Michele & Maria whose love, courage and sacrifice enabled the opportunities afforded to me today. To my parents and sister: Susan, Anthony and Laura who relentlessly supported me every step of my journey. For: My wife and children, Christina, Jake and Siena who remind me every day of the importance of love and laughter and my true purpose. FoodChemistry,FunctionandAnalysisNo.23 NutraceuticalsandHumanHealth:TheFood-to-supplementParadigm EditedbyPaulA.Spagnuolo rTheRoyalSocietyofChemistry2020 PublishedbytheRoyalSocietyofChemistry,www.rsc.org vi Contents Chapter 1 Nutraceuticals 1 Paul A. Spagnuolo 1.1 Introduction 1 1.2 Nutraceuticals for Deficiency 2 1.3 Why are Nutraceuticals Needed? 2 1.4 Supplement Use 4 1.5 Product Development Considerations 4 1.6 Conclusion 5 References 5 Chapter 2 Regulation of Nutraceuticals in Canada and the United States 7 PaulaN.Brown,MichaelChan,JosephM.Betz,MohdShahid, Shawn Cannon, Jesmy Palissery and Melany P. Puglisi 2.1 Introduction 7 2.2 Overview of Nutraceuticals Regulation in Canada 8 2.2.1 Regulation of Nutraceuticals Considered Food Products 8 2.2.2 Regulation of Nutraceuticals Considered as Food Products with Health Claims 9 2.2.3 Regulation of Nutraceuticals Considered as Drugs 10 2.2.4 Regulation of Nutraceuticals Considered as Natural Health Products 10 2.2.5 Self-care Products Initiative 13 FoodChemistry,FunctionandAnalysisNo.23 NutraceuticalsandHumanHealth:TheFood-to-supplementParadigm EditedbyPaulA.Spagnuolo rTheRoyalSocietyofChemistry2020 PublishedbytheRoyalSocietyofChemistry,www.rsc.org vii viii Contents 2.3 Overview of Nutraceuticals Regulation in the United States 13 2.3.1 Food, Drug, and Cosmetic Act (FDCA) and the US Food and Drug Administration 14 2.3.2 Food Safety and Modernization Act 17 2.3.3 Dietary Supplement Health and Education Act (DSHEA) 19 2.3.4 Botanical Drugs 23 2.4 Conclusion 23 References 24 Chapter 3 Effects of Growing Conditions on Plant Medicinal Bioactives 27 Jillian A. Forsyth and Susan J. Murch 3.1 Plant Chemistry is the Source of Nutraceuticals 27 3.2 Plant Mechanisms for Perceiving the Environment 28 3.3 Climate Conditions Affect Medicinal Phytochemistry 28 3.4 Melatonin and Serotonin in Nutraceuticals 29 3.5 Melatonin and Serotonin in Plants 31 3.6 Optimizing St. John’s Wort Medicinal Chemistry 33 3.7 Conclusions 36 References 36 Chapter 4 Extraction Technologies for Plant-derived Nutraceuticals and Natural Health Products 41 Cory S. Harris, Terry Vanderheyden and John T. Arnason 4.1 Introduction 41 4.2 Plant Collection and Identity 42 4.3 Fresh, Fermented, Enzyme Treated or Dried Plant Materials 44 4.4 Grinding and Sieving 45 4.5 Extraction Methods 45 4.5.1 Simple Solvent Extraction of Crude Extracts for Bioassay Screening or Industrial Use 45 4.5.2 Targeted Extraction 46 4.5.3 Automated Solvent Extraction and Subcritical Water Extractions 46 4.5.4 Supercritical Extraction 47 4.5.5 Steam Distillation 49 Contents ix 4.5.6 Cold Finger Extraction 49 4.5.7 Screw Press and Cold Press 49 4.5.8 Emerging Technologies 50 4.6 Drying of Extracts 50 4.7 Bioassay Guided Isolation of Active Principles 50 4.8 Standardization; Good Laboratory Practices (GLP) 53 References 54 Chapter 5 Analytical Approaches for Characterization of Bioactives in Plant-based Natural Health and Food Products 56 Michael Chan, Joseph M. Betz, Fiona J. M. Tymm and Paula N. Brown 5.1 Introduction 56 5.1.1 Foods, Natural Health Products and Nutraceuticals – Regulatory and/or Accepted Definition 57 5.1.2 Definition of Bioactives in the Context of Natural Health and Food Products 58 5.1.3 Potential Health Impact of Food/ Nutraceutical Bioactive Constituents 59 5.2 Analytical Testing of Nutraceuticals and Functional Foods 60 5.2.1 Identification Methodologies 60 5.2.2 Purity Determination 64 5.2.3 Analysis of Active and Marker Compounds 65 5.3 Method Development and Validation 66 5.3.1 Method Optimization 67 5.3.2 Method Validation 68 5.3.3 Method Fitness of Purpose 69 5.4 Sources of Methods, Resources, and Best Practices 70 References 72 Chapter 6 Encapsulation of Nutraceuticals 79 April X. Xu, Elizabeth A. L. West and Michael A. Rogers 6.1 Classification of Bioactives and Nutraceuticals 79 6.1.1 Considerations in Bioactive Delivery 80 6.1.2 BiopharmaceuticsClassificationScheme(BCS) 81 6.1.3 Nutraceutical Bioavailability Classification Scheme (NuBACS) 83