scholarly journals Encapsulation Effect on the In Vitro Bioaccessibility of Sacha Inchi Oil (Plukenetia volubilis L.) by Soft Capsules Composed of Gelatin and Cactus Mucilage Biopolymers

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1995
Author(s):  
María Carolina Otálora ◽  
Robinson Camelo ◽  
Andrea Wilches-Torres ◽  
Agobardo Cárdenas-Chaparro ◽  
Jovanny A. Gómez Castaño
Keyword(s):  
Gas Chromatography ◽  
Seed Oil ◽  
Water Solubility ◽  
Oxidation Products ◽  
Gas Chromatography Mass Spectrometry ◽  
In Vitro Bioaccessibility ◽  
Plukenetia Volubilis ◽  
Sacha Inchi ◽  
Cactus Mucilage

Sacha inchi (Plukenetia volubilis L.) seed oil is a rich source of polyunsaturated fatty acids (PUFAs) that are beneficial for human health, whose nutritional efficacy is limited because of its low water solubility and labile bioaccessibility (compositional integrity). In this work, the encapsulation effect, using blended softgels of gelatin (G) and cactus mucilage (CM) biopolymers, on the PUFAs’ bioaccessibility of P. volubilis seed oil was evaluated during in vitro simulated digestive processes (mouth, gastric, and intestinal). Gas chromatography–mass spectrometry (GC–MS) and gas chromatography with a flame ionization detector (GC–FID) were used for determining the chemical composition of P. volubilis seed oil both before and after in vitro digestion. The most abundant compounds in the undigested samples were α-linolenic, linoleic, and oleic acids with 59.23, 33.46, and 0.57 (g/100 g), respectively. The bioaccessibility of α-linolenic, linoleic, and oleic acid was found to be 1.70%, 1.46%, and 35.8%, respectively, along with the presence of some oxidation products. G/CM soft capsules are capable of limiting the in vitro bioaccessibility of PUFAs because of the low mucilage ratio in their matrix, which influences the enzymatic hydrolysis of gelatin, thus increasing the release of the polyunsaturated content during the simulated digestion.

scholarly journals Identifying volatile in vitro biomarkers for oral bacteria with proton-transfer-reaction mass spectrometry and gas chromatography–mass spectrometry

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kajsa Roslund ◽  
Markku Lehto ◽  
Pirkko Pussinen ◽  
Kari Hartonen ◽  
Per-Henrik Groop ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Proton Transfer ◽  
Transfer Reaction ◽  
Proton Transfer Reaction ◽  
Oral Bacteria ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Analysis ◽  
Bacterial Volatiles

AbstractWe have measured the volatile fingerprints of four pathogenic oral bacteria connected to periodontal disease and dental abscess: Porphyromonas gingivalis (three separate strains), Prevotella intermedia, Prevotella nigrescens and Tannerella forsythia. Volatile fingerprints were measured in vitro from the headspace gas of the bacteria cultured on agar. Concrete identification of new and previously reported bacterial volatiles were performed by a combination of solid phase microextraction (SPME) and offline gas chromatography–mass spectrometry (GC–MS). We also studied the effect of the reduced electric field strength (E/N) on the fragmentation patterns of bacterial volatiles in online proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS). We aimed to discover possible new biomarkers for the studied oral bacteria, as well as to validate the combination of GC–MS and PTR-MS for volatile analysis. Some of the most promising compounds produced include: 1-Methyl-1,2,3,4-tetrahydroisoquinoline (1MeTIQ), indole, and a cascade of sulphur compounds, such as methanethiol, dimethyl disulphide (DMDS) and dimethyl trisulphide (DMTS). We also found that several compounds, especially alcohols, aldehydes and esters, fragment significantly with the PTR-MS method, when high E/N values are used. We conclude that the studied oral bacteria can be separated by their volatile fingerprints in vitro, which could have importance in clinical and laboratory environments. In addition, using softer ionization conditions can improve the performance of the PTR-MS method in the volatile analysis of certain compounds.

Gas chromatography-mass spectrometry fingerprint and in vitro cytotoxic studies of Rubus steudneri leaf fractions against michigan cancer foundation-7 breast cancer cell line

2021 ◽  
Vol 17 (5) ◽  
pp. 54
Author(s):  
RaghavendraLakshmana Shetty Hallur ◽  
ChaitanyaV. N L. Motamarri ◽  
PrashithKekuda T. Ramamoorthy ◽  
ChetanD Murthy ◽  
RavikumarPatil H. Siddappa ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Cell Line ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Line ◽  
Cancer Cell Line ◽  
Gas Chromatography Mass Spectrometry ◽  
Cytotoxic Studies

scholarly journals In Vitro Study of Multi-Therapeutic Properties of Thymus bovei Benth. Essential Oil and Its Main Component for Promoting Their Use in Clinical Practice

2018 ◽  
Vol 7 (9) ◽  
pp. 283 ◽  
Author(s):  
Sherif Hassan ◽  
Kateřina Berchová-Bímová ◽  
Miroslava Šudomová ◽  
Milan Malaník ◽  
Karel Šmejkal ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Clinical Practice ◽  
Essential Oil ◽  
Biological Activities ◽  
Structural Parameters ◽  
Antihypertensive Agents ◽  
Gas Chromatography Mass Spectrometry ◽  
Ic50 Values ◽  
Main Component

Thymus bovei Benth. (TB) is an important plant in the traditional medicine of the Mediterranean region. This study investigates the health-promoting properties of TB essential oil (TB-EO) for its possible use in clinical practice with regards to its cytotoxic, anti-herpes simplex virus type 2 (HSV-2), and antihypertensive (through inhibition of human angiotensin-converting enzyme; ACE) properties. The phytochemical profile of EO (99.9%) was analyzed by Gas Chromatography with Flame-Ionization Detection (GC-FID) and Gas Chromatography-Mass Spectrometry (GC-MS). In this study, all biological methods were performed at the level of in vitro studies. The results showed that TB-EO exerted remarked cytotoxic properties against human cervical carcinoma cells, colon cancer cells, and lung adenocarcinoma cells with the half-maximal inhibitory concentration (IC50) values of 7.22, 9.30, and 8.62 µg/mL, respectively, in comparison with that of standard anticancer drug cisplatin with IC50 values of 4.24, 5.21, and 5.43 µg/mL, respectively. Fascinatingly, TB-EO showed very weak cytotoxicity on the healthy human fetal lung fibroblast cells with an IC50 value of 118.34 µg/mL compared with that of cisplatin (IC50 = 10.08 µg/mL). TB-EO, its main component geraniol, TB-EO combined with acyclovir (ACV) along with standard ACV, have displayed pronounced inhibitory properties against the replication of HSV-2 with the half-maximal effective concentration (EC50) values of 2.13, 1.92, 0.81 and 1.94 µg/mL, respectively, with corresponding selectivity indices (SI) 98.59, 109.38, 259.26 and 108.25, respectively. TB-EO and geraniol at a concentration of 15 µg/mL showed prominent inhibitory activities against ACE with % of inhibition 95.4% and 92.2%, respectively, compared with that of standard inhibitor captopril (99.8%; 15 µg/mL). Molecular docking studies were performed to unveil the mechanism of action of geraniol as well as structural parameters necessary for anti-HSV-2 activity (through the inhibition of HSV-2 protease) and ACE inhibition. This is the first report on the chemical composition of Egyptian TB-EO along with the above-mentioned biological activities. Our results may be considered as novel findings in the course of a search for new and active anticancer, anti-HSV-2 and antihypertensive agents, and expand the medicinal value of this plant and its phytochemicals in clinical practice.

scholarly journals Desempenho horticultural de plantas propagadas in vitro de Sacha inchi

2014 ◽  
Vol 44 (6) ◽  
pp. 1050-1053 ◽  
Author(s):  
Paulo Hercílio Viegas Rodrigues ◽  
Stevan Ricardo Bordignon ◽  
Glaucia Maria Bovi Ambrosano
Keyword(s):  
Plukenetia Volubilis ◽  
Sacha Inchi

O objetivo do presente trabalho foi avaliar, em condições de campo, características horticulturais de mudas propagadas in vitro de Sacha inchi (Plukenetia volubilis L), quanto à época de florescimento e colheita, características morfológicas relacionadas à coloração e forma de folhas, caule e frutos, bem como a produtividade do material propagado in vitro. As mudas de cultura de tecidos foram propagadas por seis semanas em meio de cultivo com sais e vitaminas de MS, acrescido de 30g L-1 de sacarose e 1,0mg L-1 de BAP, a partir do ponteiro de plântula germinada in vitro. Foram selecionadas, ao acaso, quatro plantas propagadas in vitro, quatro plantas por via seminal e mais vinte e duas plantas, também por via seminal, compondo a bordadura, totalizando trinta plantas. As análises foram semanais até completar quatorze meses do plantio, que ocorreu antes da primeira poda. Os resultados obtidos indicam a não ocorrência de variabilidade genética nas plantas produzidas in vitro, bem como precocidade na produção e maior produtividade, quando comparado com o material convencional obtido via seminal.

scholarly journals Efeito inibitório de extrato alcoólico de amêndoa de Sacha-inchi em Rhizoctonia sp

2021 ◽  
Vol 14 (6) ◽  
pp. 27-30
Author(s):  
Renan Colavite Dos Santos ◽  
Ana Paula Rodrigues da Silva ◽  
Giseudo Aparecido Paiva ◽  
Ostenildo Ribeiro Campos ◽  
Adriana Matheus da Costa Figueiredo
Keyword(s):  
Plukenetia Volubilis ◽  
Sacha Inchi

A agricultura sustentável busca meios alternativos para controlar o ataque fúngico de acordo com as particularidades de cada fungo, com o intuito de reduzir o uso de agroquí­micos. Os extratos alcóolicos são uma alternativa, visto que são produtos naturais extraí­dos de plantas ou de partes da mesma que apresentam efeito fungicida. Desse modo o objetivo desse trabalho foi testar o controle in vitro do Rhizoctonia sp. utilizando diferentes concentrações de extrato alcoólicos de Sacha Inchi (Plukenetia volubilis). Para isso foi instalado um experimento em delineamento inteiramente ao acaso com 6 concentrações de extrato alcoólico de Sacha Inchi (0%, 2%, 4%, 6%, 8% e 10%) com 8 repetições. Foram mensurados o crescimento diário da colônia, o í­ndice de velocidade de crescimento micelial (IVCM) e a porcentagem de inibição de crescimento (PIC). Os dados obtidos foram analisados via analise de regressão polinomial utilizando o software R Studio. A partir da concentração de 6% o fungo apresenta pequeno desenvolvimento, e na dose máxima testada (10%) o crescimento do fungo foi praticamente nulo. O extrato alcoólico de Sacha Inchi foi eficiente a partir da concentração de 6%, o que o torna indicado para o controle do fungo Rhizoctonia sp

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