Abstract
Brazilian and Floridian acai were found to contain 24% insoluble solids. They were dark brown and were not soluble in hexane, methanol or water. When 6 N HCl was added to the insoluble solids, they turned red, as do anthocyanins. The solids were analyzed by CP-MAS 13C-NMR. Phenolic C-O, aromatic, glycosidic and aliphatic carbons were detected. About 27% of the solids were hydrolyzed and solubilized by refluxing in conc HCl. Acai is a unique fruit in that it is sold as a product that has a relatively high amount of insoluble solids. So, two things that genuine, unfiltered acai should have are about 24% insoluble solids and the appropriate CP-MAS 13C-NMR spectrum.
Keywords: Acai, CP-MAS NMR, anthocyanins, aroma, minerals, edible proteins, dietry fibres, pulp, citric acid, fruit
The Natural Products Journal
Title:Insoluble Solids in Brazilian and Floridian Acai (Euterpe oleraceae Mart.)
Volume: 2 Issue: 2
Author(s): Robert E. Smith, Janete Eaker, Kevin Tran, Michael Goerger, Wei Wycoff, Armando U. O. Sabaa-Srur and Ellen M. da Silva Menezes
Affiliation:
Keywords: Acai, CP-MAS NMR, anthocyanins, aroma, minerals, edible proteins, dietry fibres, pulp, citric acid, fruit
Abstract: Brazilian and Floridian acai were found to contain 24% insoluble solids. They were dark brown and were not soluble in hexane, methanol or water. When 6 N HCl was added to the insoluble solids, they turned red, as do anthocyanins. The solids were analyzed by CP-MAS 13C-NMR. Phenolic C-O, aromatic, glycosidic and aliphatic carbons were detected. About 27% of the solids were hydrolyzed and solubilized by refluxing in conc HCl. Acai is a unique fruit in that it is sold as a product that has a relatively high amount of insoluble solids. So, two things that genuine, unfiltered acai should have are about 24% insoluble solids and the appropriate CP-MAS 13C-NMR spectrum.
Export Options
About this article
Cite this article as:
E. Smith Robert, Eaker Janete, Tran Kevin, Goerger Michael, Wycoff Wei, U. O. Sabaa-Srur Armando and M. da Silva Menezes Ellen, Insoluble Solids in Brazilian and Floridian Acai (Euterpe oleraceae Mart.), The Natural Products Journal 2012; 2 (2) . https://dx.doi.org/10.2174/2210315511202020095
DOI https://dx.doi.org/10.2174/2210315511202020095 |
Print ISSN 2210-3155 |
Publisher Name Bentham Science Publisher |
Online ISSN 2210-3163 |
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
Related Articles
-
Dysfunction of Cellular Transporters and Predisposition to Diabetic Nephropathy
Current Diabetes Reviews Oxytocin - A Multifunctional Analgesic for Chronic Deep Tissue Pain
Current Pharmaceutical Design Pharmacogenomic Considerations of the Insertion / Deletion Gene Polymorphism of the Angiotensin I-Converting Enzyme and Coronary Artery Disease
Current Vascular Pharmacology Genetic Studies of Type 2 Diabetes in South Asians: A Systematic Overview
Current Diabetes Reviews Role of Polyunsaturated Fatty Acids and Fatty Acid Binding Protein in the Pathogenesis of Schizophrenia
Current Pharmaceutical Design Endothelial Dysfunction and Atherosclerosis: Focus on Novel Therapeutic Approaches
Recent Patents on Cardiovascular Drug Discovery Adrenomedullin Function in Vascular Endothelial Cells: Insights from Genetic Mouse Models
Current Hypertension Reviews Effects of Amine Oxidases in Allergic and Histamine-Mediated Conditions
Recent Patents on Inflammation & Allergy Drug Discovery Synopsis on Managment Strategies for Neurodegenerative Disorders: Challenges from Bench to Bedside in Successful Drug Discovery and Development
Current Topics in Medicinal Chemistry The gp130 Receptor Cytokine Family: Regulators of Adipocyte Development and Function
Current Pharmaceutical Design Peroxisome Proliferator-Activated Receptor γ Agonists as Insulin Sensitizers: From the Discovery to Recent Progress
Current Topics in Medicinal Chemistry Recombinant Hepatitis B Vaccination in Renal Failure Patients
Current Pharmaceutical Biotechnology Statins: A Valuable Tool for the Prevention/Regression of Abdominal Aortic Aneurysms
Vascular Disease Prevention (Discontinued) Chalcones: As Potent α-amylase Enzyme Inhibitors; Synthesis, <i>In Vitro</i>, and <i>In Silico</i> Studies
Medicinal Chemistry The Role of AGEs in Cardiovascular Disease
Current Pharmaceutical Design Determinants of the Resolution of Type 2 Diabetes After Bariatric Surgery
Vascular Disease Prevention (Discontinued) Blood Pressure Lowering and Outcomes in type 2 Diabetes: Implications of the Blood Pressure-Lowering Arm of the Advance Trial
Current Hypertension Reviews Therapies Targeting Innate Immunity for Fighting Inflammation in Atherosclerosis
Current Pharmaceutical Design Is Metabolic Syndrome Associated to HIV Infection Per Se? Results from the HERMES Study
Current HIV Research Amino Thiols, Detoxification and Oxidative Stress in Pre-Eclampsia and Other Disorders of Pregnancy
Current Pharmaceutical Design