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Albarracín M, Dyner L, Giacomino MS, Weisstaub A, Zuleta A, Drago SR. Modification of nutritional properties of whole rice flours (Oryza sativa L.) by soaking, germination, and extrusion. J Food Biochem 2019; 43:e12854. [PMID: 31353715 DOI: 10.1111/jfbc.12854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/06/2019] [Accepted: 03/19/2019] [Indexed: 11/29/2022]
Abstract
Modifications of nutritional properties (amino acids, available lysine, protein digestibility, fatty acids, fiber, inositol phosphate (IPs), free and bound phenolics, and antioxidant properties) of whole rice ingredients processed by soaking, germination, and/or extrusion cooking were evaluated. Soaking and germination reduced proteins by lixiviation and hydrolysis, respectively. Lysine was the limiting amino acid. Polyunsaturated fatty acids increased after germination. Protein digestibility was 100% for germinated rice, decreased to 75% after the extrusion process. Fiber content decreased around 73% after the extrusion of soaked and germinated flours. Soaking-extrusion combined processes produces >50% IPs reduction. Germination-extrusion produced flours with the highest antioxidant capacity (54 µmol trolox g-1 ), which was in accordance with the highest content of free and bound phenolics (66 and 69 mg GA 100 g-1 , respectively). Grain treatments changed nutritional properties of flours resulting in low antinutrient whole grain ingredients, which could be used to develop whole grain-based foods. PRACTICAL APPLICATIONS: Phytic acid (PA) is an antinutrient having negative effects on mineral bioavailability and protein digestibility. There are processes such as soaking, germination, and extrusion, which alone or combined can decrease PA. However, nutritional composition and functionality of flours can change. We observed PA was highly reduced by soaking or germination combined with extrusion and antioxidant capacity and phenolic content increased in germinated and germinated-extruded flours compared to the other treatments. These modified whole grain rice flours low in anti-nutrients could be used in the production of expanded products or pre-cooked ingredients to develop whole grain based foods nutritionally improved.
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Affiliation(s)
- Micaela Albarracín
- Facultad de Ingeniería Química, Instituto de Tecnología de Alimentos, CONICET, UNL, Santa Fe, Argentina
| | - Luis Dyner
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - María Silvia Giacomino
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - Adriana Weisstaub
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - Angela Zuleta
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - Silvina R Drago
- Facultad de Ingeniería Química, Instituto de Tecnología de Alimentos, CONICET, UNL, Santa Fe, Argentina
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Greco CB, López LB, Rodríguez V, Dyner L, Gibson V, Pinotti LV, Ronayne de Ferrer PA. Comparison of vitamin A intake from breast milk and from complementary foods in the diet of six-month old infants in Jujuy and Buenos Aires. ARCH ARGENT PEDIATR 2014. [PMID: 25192525 DOI: 10.5546/aap.2014.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The objective of this study was to compare the dietary pattern of two socio-culturally different populations, focusing on the vitamin A intake from breast milk and from the most commonly consumed complementary foods. Dietary surveys on six-month old infant feeding were administered to breastfeeding mothers in Jujuy (n= 44) and Buenos Aires (n= 95).For milk, the level of retinol was determined by liquid chromatography; for foods, calorie and vitamin A values were estimated. In Jujuy and Buenos Aires, 75.6% and 64.5% of infants were receiving complementary foods at six months old, and more than 50% had started earlier. Milk retinol ranged from 0.02 to 1.19 μg/ mL and from 0.09 to 1.94 μg/mL in mothers in Jujuy and Buenos Aires, respectively.Values <0.30 μg/mL, indicative of vitamin A deficiency, were observed in 67.4% and 26.1% of milk samples, respectively. Usually consumed foods may provide sufficient vitamin A for Buenos Aires participants, but insufficient for those in Jujuy.
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Affiliation(s)
- Carola Beatriz Greco
- Cátedra de Bromatologia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Laura Beatriz López
- Cátedra de Bromatologia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Viviana Rodríguez
- Cátedra de Bromatologia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Luis Dyner
- Cátedra de Bromatologia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | | | - Luisa Virginia Pinotti
- Escuela de Nutrición, Centro de Investigación Sobre Problemáticas Alimentarias-Nutricionales, Facultad de Medicina, Universidad de Buenos Aires
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Vidueiros SM, Dyner L, Bertero D, Pallaro A. Quality protein of Argentinean Northwest quinoa crops: Study based on amino acids composition. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.949.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Luis Dyner
- Food ScienceSchool of Pharmacy and Biochemistry. University of Buenos Aires.Buenos AiresArgentina
| | - Daniel Bertero
- Vegetal PhysiologySchool of AgronomyUniversity of Buenos AiresBuenos AiresArgentina
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Gable MS, Gavali S, Radner A, Tilley DH, Lee B, Dyner L, Collins A, Dengel A, Dalmau J, Glaser CA. Anti-NMDA receptor encephalitis: report of ten cases and comparison with viral encephalitis. Eur J Clin Microbiol Infect Dis 2009; 28:1421-9. [PMID: 19718525 PMCID: PMC2773839 DOI: 10.1007/s10096-009-0799-0] [Citation(s) in RCA: 180] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2009] [Accepted: 08/01/2009] [Indexed: 01/17/2023]
Abstract
The California Encephalitis Project (CEP), established in 1998 to explore encephalitic etiologies, has identified patients with N-methyl-D-aspartate receptor (NMDAR) antibodies, the likely etiology of their encephalitis. This study compares the presentation of such patients to those with viral encephalitis, so that infectious disease clinicians may identify individuals with this treatable disorder. Patients were physician-referred, and standardized forms were used to gather demographic, clinical, and laboratory data. Features of anti-NMDAR+ patients were compared with the viral encephalitides of enteroviral (EV), rabies, and herpes simplex-1 (HSV-1) origins. Sixteen cases with confirmed viral etiologies were all negative on NMDAR antibody testing. Ten anti-NMDAR+ patients were profiled with a median age of 18.5 years (range 11-31 years). None were Caucasian. They had a characteristic progression with prominent psychiatric symptoms, autonomic instability, significant neurologic abnormalities, and seizures. Two had a teratoma, and, of the remaining eight, four had serologic evidence of acute Mycoplasma infection. The clinical and imaging features of anti-NMDAR+ patients served to differentiate this autoimmune disorder from HSV-1, EV, and rabies. Unlike classic paraneoplastic encephalitis, anti-NMDAR encephalitis affects younger patients and is often treatable. The association of NMDAR antibodies in patients with possible Mycoplasma pneumoniae infection warrants further study.
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Affiliation(s)
- M. S. Gable
- Department of Psychiatry, University of California San Francisco, Fresno, CA USA
- Viral and Rickettsial Disease Laboratory, California Department of Health Services, 850 Marina Bay Parkway, Richmond, CA 94804 USA
| | - S. Gavali
- Viral and Rickettsial Disease Laboratory, Division of Communicable Disease Control, Center of Infectious Disease, California Department of Public Health, Richmond, CA USA
| | - A. Radner
- Salinas Valley Memorial Hospital, Salinas, CA USA
| | - D. H. Tilley
- Division of Infectious Disease, Naval Medical Center San Diego, San Diego, CA USA
| | - B. Lee
- Division of Infectious Disease, Children’s Hospital and Research Center Oakland, Oakland, CA USA
| | - L. Dyner
- Lucile Packard Children’s Hospital, Palo Alto, CA USA
| | - A. Collins
- Department of Pediatrics, Section of Child Neurology, University of Colorado, Denver, CO USA
| | - A. Dengel
- Loma Linda University Medical Center, Loma Linda, CA USA
| | - J. Dalmau
- Department of Neurology, Division of Neuro-oncology, University of Pennsylvania, Philadelphia, PA USA
| | - C. A. Glaser
- Viral and Rickettsial Disease Laboratory, Division of Communicable Disease Control, Center of Infectious Disease, California Department of Public Health, Richmond, CA USA
- Viral and Rickettsial Disease Laboratory, California Department of Health Services, 850 Marina Bay Parkway, Richmond, CA 94804 USA
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Dyner L, Drago SR, Piñeiro A, Sánchez H, González R, Villaamil E, Valencia ME. [Composition and potential contribution of iron, calcium and zinc of bread and pasta made with wheat and amaranth flours]. Arch Latinoam Nutr 2007; 57:69-77. [PMID: 17824202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Amaranth, a traditional american crop that is nowadays given renewed importance, has good food potential value. The minerals contributed by the grain are quantitatively important. However, as the flour is obtained by total grinding of the grain, this process leads to the presence of anti-nutritional components, such as fitates, and therefore, the evaluation of the actual availability of the minerals of nutritional interest becomes necessary. The process of bread fermentation, plus the addition of fitases and enhancers of mineral availability such as citric and ascorbic acid, might improve mineral bioavailability. The objective of this work was to assess protein, ash, lipids and total dietary fiber content and evaluate the concentration and dialyzability of Fe, Zn and Ca (as mineral bioavailability indicator) in bread and pasta 100% wheat, and bread and pasta obtained by replacing 20% wheat flour (WF) with whole amaranth flour (WAF). Ascorbic acid (AA), citric acid (CA) and fitase were used as mineral bioavailability enhancers. The potential contribution of each mineral (PC) was calculated as each mineral concentration times its dialyzability. In 80:20 bread an increase of total dietary fiber and minerals, compared to 100% wheat products was observed. A maximum FePC in 80:20 bread was obtained with CA and fitase (0.55mg%). In pasta, the maximum effect was observed with CA (0.07 mg%). The CaPC was maximum in 80:20 pasta with CA (16.72 mg%). The greatest ZnPC was found in 80:20 bread with CA and fitase (0.40 mg%). The introduction of the WAF in fermented baked products with addition of CA and fitase allows to obtain nutritional advantages.
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Affiliation(s)
- Luis Dyner
- Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
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Zuleta A, Dyner L, Sambucetti ME, de Francisco A. Effect of Gamma Irradiation on the Functional and Nutritive Properties of Rice Flours from Different Cultivars. Cereal Chem 2006. [DOI: 10.1094/cc-83-0076] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Angela Zuleta
- Facultad de Farmacia y Bioquímica. Universidad de Buenos Aires, Argentina
- Corresponding author. E-mail:
| | - Luis Dyner
- Facultad de Farmacia y Bioquímica, cátedra de Bromatología. Universidad de Buenos Aires, Argentina
| | - María Elena Sambucetti
- Facultad de Farmacia y Bioquímica, cátedra de Bromatología. Universidad de Buenos Aires, Argentina
| | - Alicia de Francisco
- Laboratorio de Cereales, Dept. Ciencia e Tecnología de Alimentos, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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