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Verônica Cardoso de Souza B, de Morais Sousa M, Augusto Gasparotto Sattler J, Cristina Sousa Gramoza Vilarinho Santana A, Bruno Fonseca de Carvalho R, de Sousa Lima Neto J, de Matos Borges F, Angelica Neri Numa I, Braga Ribeiro A, César Cunha Nunes L. Nanoencapsulation and bioaccessibility of polyphenols of aqueous extracts from Bauhinia forficata link. FOOD CHEMISTRY. MOLECULAR SCIENCES 2022; 5:100144. [PMID: 36404894 PMCID: PMC9672949 DOI: 10.1016/j.fochms.2022.100144] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 09/16/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Bauhinia forficata Link is a plant rich in polyphenols that has been used mainly for its hypoglycemic activity, which is related to its antioxidant and anti-inflammatory potential. However, the beneficial effect of these bioactive compounds is directly dependent on their bioaccessibility and bioavailability, requiring processing techniques that can improve and preserve their biological activities. This work aimed to obtain nanocapsulated extracts from the infusion (ESIN) and decoction (ESDC) of B. forficata Link leaves, by spray drying. The encapsulating agents used were maltodextrin and colloidal silicon dioxide. The nanocapsules were characterized by HPLC-PDA-ESI-IT-MS n , evaluated the bioaccessibility of polyphenols after simulated digestion and their antioxidant activity. Additionally, an extensive physicochemical characterization of the nanocapsulated extracts was carried out and their stability and technological parameters were evaluated. The ESIN and ESDC extracts had yields of 57.3 % and 62.7 %, with average nanocapsules sizes of 0.202 μm and 0.179 μm, low humidity and water activity (<0.5), powder density and proper flow properties (Hausner ratio ≤ 1.25; Carr index 18-19 %). Scanning electron microscopy showed a spherical and amorphous morphology and low viscosity, which may have favored the solubility profile. The phenolic compounds of the nanocapsules degraded after 400 °C, showing high thermal stability. The infrared spectra identified the presence of maltodextrin and phenolic compounds and that there were no reactions between them. Chromatography confirmed the presence of phenolic compounds, mainly flavonols and their O-glycosylated derivatives, as well as carbohydrates, probably maltodextrin. Simulated in vitro digestion showed that polyphenols and flavonoids from ESIN and ESDC nanocapsules were bioaccessible after the gastric phase (49.38 % and 64.17 % of polyphenols and 64.08 % and 36.61 % of flavonoids) and duodenal (52.68 % and 79.06 % of polyphenols and 13.24 % and 139.03 % of flavoids), with a variation from 52.27 % to 70.55 % of the antioxidant activity maintained, by the ORAC method, after gastric digestion and still 25 %, after duodenal. Therefore, the nanoencapsulation of extracts of B. forficata is a viable option for the preservation of their bioactive compounds, making them bioaccessible and with antioxidant activity, which make them suitable for incorporation into various nutraceutical formulations, such as capsules, tablets and sachets.
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Affiliation(s)
| | - Mariana de Morais Sousa
- Department of Hospitality, Leisure and Food Production, Federal Institute of Education Science and Technology of Piaui, Campus Zona Sul, São Pedro, Teresina, Piaui, Brazil
| | - José Augusto Gasparotto Sattler
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | | | - Fernando de Matos Borges
- Post-Graduate Program in Materials Science and Engineering, Federal University of Piaui, Campus Ministro Petrônio Portela, Ininga, Teresina, Piaui, Brazil
| | - Iramaia Angelica Neri Numa
- Department of Food Science, Faculty of Food Engineering, State University of Campinas, Campinas, São Paulo, Brazil
| | - Alessandra Braga Ribeiro
- Universidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
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Bauhinia forficata Link Infusions: Chemical and Bioactivity of Volatile and Non-Volatile Fractions. Molecules 2022; 27:molecules27175415. [PMID: 36080183 PMCID: PMC9457595 DOI: 10.3390/molecules27175415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 11/24/2022] Open
Abstract
This study aimed to evaluate Bauhinia forficata infusions prepared using samples available in Rio de Janeiro, Brazil. As such, infusions at 5% (w/v) of different brands and batches commercialized in the city (CS1, CS2, CS3, and CS4) and samples of plant material botanically identified (BS) were evaluated to determine their total phenolic and flavonoid contents (TPC and TFC), antioxidant capacity (ABTS•+, DPPH•, and FRAP assays), phytochemical profile, volatile compounds, and inhibitory effects against the α-amylase enzyme. The results showed that infusions prepared using BS samples had lower TPC, TFC and antioxidant potential than the commercial samples (p < 0.05). The batch averages presented high standard deviations mainly for the commercial samples, corroborating sample heterogeneity. Sample volatile fractions were mainly composed of terpenes (40 compounds identified). In the non-volatile fraction, 20 compounds were identified, with emphasis on the CS3 sample, which comprised most of the compounds, mainly flavonoid derivatives. PCA analysis demonstrated more chemical diversity in non-volatile than volatile compounds. The samples also inhibited the α-amylase enzyme (IC50 value: 0.235−0.801 mg RE/mL). Despite the differences observed in this work, B. forficata is recognized as a source of bioactive compounds that can increase the intake of antioxidant compounds by the population.
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Dej-adisai S, Rais IR, Wattanapiromsakul C, Pitakbut T. Alpha-Glucosidase Inhibitory Assay-Screened Isolation and Molecular Docking Model from Bauhinia pulla Active Compounds. Molecules 2021; 26:molecules26195970. [PMID: 34641514 PMCID: PMC8512368 DOI: 10.3390/molecules26195970] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this research was to establish the constituents of Bauhinia pulla as anti-diabetic agents. A phytochemistry analysis was conducted by chromatographic and spectroscopic techniques. The alpha-glucosidase inhibitory assay screening resulted in the isolation of eight known compounds of quercetin, quercitrin, luteolin, 5-deoxyluteolin, 4-methyl ether isoliquiritigenin, 3,2',4'-trihydroxy-4-methoxychalcone, stigmasterol and β-sitosterol. Ethanol leaf extracts showed potential effects, which led to a strong inhibitory activity of isolated quercetin at 138.95 µg/mL and 5.41 µg/mL of IC50, respectively. The docking confirmed that flavonoids and chalcones had the same potential binding sites and responsibilities for their activity. This study was the first report of Bauhinia pulla chemical constituents and its alpha-glucosidase inhibition.
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Affiliation(s)
- Sukanya Dej-adisai
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand; (I.R.R.); (C.W.)
- Correspondence: ; Tel.: +66-74-288888; Fax: +66-74-288891
| | - Ichwan Ridwan Rais
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand; (I.R.R.); (C.W.)
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Ahmad Dahlan, Yogyakarta 55164, Indonesia
| | - Chatchai Wattanapiromsakul
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand; (I.R.R.); (C.W.)
| | - Thanet Pitakbut
- Department of Biochemical and Chemical Engineering, Technical University of Dortmund, 44227 Dortmund, Germany;
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Cechinel-Zanchett CC, Bolda Mariano LN, Boeing T, da Costa JDC, Da Silva LM, Bastos JK, Cechinel-Filho V, de Souza P. Diuretic and Renal Protective Effect of Kaempferol 3- O-Alpha-l-rhamnoside (Afzelin) in Normotensive and Hypertensive Rats. JOURNAL OF NATURAL PRODUCTS 2020; 83:1980-1989. [PMID: 32453565 DOI: 10.1021/acs.jnatprod.0c00274] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Our previous study showed that kaempferitrin, the main flavonoid from Bauhinia forficata Link leaves, induces diuresis and saluresis when orally given to rats. Since afzelin (AFZ) and kaempferol (KFL) are active compounds from the biometabolism of kaempferitrin, the diuretic and renal protective properties of these two compounds were evaluated. While the acute treatment with AFZ evoked a diuretic action associated with an increase in Cl- excretion and a Ca2+-sparing effect, KFL did not present any activity. The pretreatment with a muscarinic receptor blocker or with an inhibitor of the cyclooxygenase fully avoided AFZ-induced diuresis. AFZ also induced a prolonged (7-day treatment) diuretic effect in normotensive (NTR) and hypertensive rats (SHR), with an increase of urinary Na+ and Cl- excretion, while it decreased the elimination of Ca2+. AFZ was able to decrease ROS and nitrite generation on kidney homogenates in comparison with the SHR group treated with the vehicle, as well as mitigated the changes in the renal corpuscle region (glomerulus and Bowman's capsule). Moreover, AFZ significantly reduced calcium oxalate crystal formation in urine, with inhibition rates of 41% for the NTR and 92% for the SHR group. Taken together, this study shows that AFZ exerts acute and prolonged diuretic effects plus protective renal properties.
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Affiliation(s)
- Camile Cecconi Cechinel-Zanchett
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Luísa Nathália Bolda Mariano
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Thaise Boeing
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Juliana de Carvalho da Costa
- School of Pharmaceutical Sciences, University of Sao Paulo, Avenida do Café - CEP 14040-903 Ribeirão Preto, SP, Brazil
| | - Luísa Mota Da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Jairo K Bastos
- School of Pharmaceutical Sciences, University of Sao Paulo, Avenida do Café - CEP 14040-903 Ribeirão Preto, SP, Brazil
| | - Valdir Cechinel-Filho
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Priscila de Souza
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
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