Free radical scavenging capacity, antibacterial activity and essential oil composition of turmeric (Curcuma domestica) varieties grown in Ethiopia

Kebede, Belay Haile; Forsido, Sirawdink Fikreyesus; Tola, Yetenayet B.; Astatkie, Tess

doi:10.1016/j.heliyon.2021.e06239

Cited by 38 publications

(20 citation statements)

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“…The phytochemical composition of turmeric as determined in this study (Table 2) et al, 2006;Kebede et al, 2021). The gas production from in vitro degradation of substrate containing varying levels of turmeric powder is shown in Table 3.…”

Section: Resultsmentioning

confidence: 73%

“…Turmeric is rich in curcuminoids, a polyphenolic compound which contains 70-77% curcumin, 18-20% d e m e t h o x y c u r c u m i n a n d 7 -1 0 % bisdemethoxycurcumin (Pradeep et al, 2016). These active constituents of turmeric are known to exhibit a wide range of biological activities which includes antibacterial and antifungal activities (Kebede et al, 2021). In a bid to search for natural and readily available alternatives to antibiotic-based rumen modifiers, this study aimed at exploring the potentials of turmeric as a rumen modifying feed additive with a view of determining its level of inclusion in the diet for achieving rumen fermentation changes.…”

Section: Introductionmentioning

confidence: 99%

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An in-vitro evaluation of the potentials of turmeric as phytogenic feed additive for rumen modification

Aderinboye

Olanipekun

2021

NJAP

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The potential risk to animal and human health in the use of antibiotic feed additives for modifying rumen fermentation has necessitated the search for natural alternatives which are generally regarded as safe. The aim of this study was to evaluate the potentials of turmeric powder in rumen manipulation using the in vitro method. Substrate of Panicum maximum and concentrate in ratio 6: 4 with turmeric inclusion at four levels of 0, 5, 10 and 15 mg/g dry matter (DM) were used for this study. The experiment was arranged in a completely randomized design. Approximately 200 mg of substrate in each treatment was weighed separately into 100 mL glass syringes into which 30 mL of rumen fluid and buffer solution (1:2 v/v) were added. The quantities of total gas, methane, ammonia, total volatile fatty acids production and substrate degraded were determined 48-h post incubation. Rumen bacteria, protozoa, fungi population were determined and microbial biomass was estimated. Some phytochemical constituents of turmeric were also determined using standard methods. Turmeric had a higher percentage of curcumin relative to other phytochemical contents determined. Turmeric effectively and consistently (p < 0.05) reduced gas production at levels above 5 mg/g of substrate inclusion throughout the 48-h incubation period. Similarly, turmeric reduced (p < 0.05) methane, carbon-dioxide, ammonia and total volatile fatty acids production, and substrate degradation at 10 – 15 mg/g inclusion. Rumen bacteria and protozoa reduced when turmeric was included at 10 – 15 mg/g while fungi reduction was observed at 15 mg/g of inclusion. Reduction in microbial biomass was observed at 15 mg/g of turmeric inclusion. It can be concluded from this study that turmeric inclusion above 5 mg/g DM of substrate, can modify the rumen by causing a reduction in fermentation end-products. The reduction of ammonia production at 15 mg/g which significantly reduced microbial biomass has implication for lowering microbial protein synthesis. Le risque potentiel pour la santé animale et humaine dans l'utilisation d'additifs alimentaires antibiotiques pour modifier la fermentation du rumen a nécessité la recherche d'alternatives naturelles qui sont généralement considérées comme sûres. Le but de cette étude était d'évaluer les potentiels de la poudre de curcuma dans la manipulation du rumen en utilisant la méthode in vitro. Substrat de Panicum maximum et concentré dans le rapport 6: 4 avec l'inclusion de curcuma à quatre niveaux de 0, 5, 10 et 15 mg/g de matière sèche (DM) ont été utilisés pour cette étude. L'expérience a été organisée dans une conception complètement randomisée. Environ 200 mg de substrat dans chaque traitement ont été pesés séparément dans des seringues en verre de 100 mL dans lesquelles 30 mL de liquide rumen et de solution tampon (1:2 v/v) ont été ajoutés. Les quantités totales de gaz, de méthane, d'ammoniac, de production totale d'acides gras volatils et de substrat dégradé ont été déterminées 48 h après incubation. La bactérie Rumen, le protozoaire, la population de champignons ont été déterminés et la biomasse microbienne a été estimée. Certains constituants phytochimiques du curcuma ont également été déterminés à l'aide de méthodes standard. Le curcuma avait un pourcentage plus élevé de curcumine par rapport à d'autres contenus phytochimiques déterminés. Le curcuma a réduit efficacement et systématiquement (p < 0,05) la production de gaz à des niveaux supérieurs à 5 mg/g d'inclusion du substrat tout au long de la période d'incubation de 48 h. De même, le curcuma a réduit (p < 0,05) le méthane, le dioxyde de carbone, l'ammoniac et la production totale d'acides gras volatils, et la dégradation du substrat à 10 à 15 mg/g d'inclusion. Les bactéries rumen et le protozoaire ont diminué lorsque le curcuma a été inclus à 10 – 15 mg/g tandis que la réduction des champignons a été observée à 15 mg/g d'inclusion. La réduction de la biomasse microbienne a été observée à 15 mg/g d'inclusion de curcuma. On peut conclure de cette étude que l'inclusion de curcuma au- dessus de 5 mg/g de DM de substrat, peut modifier le rumen en causant une réduction des produits finaux de fermentation. La réduction de la production d'ammoniac à 15 mg/g, ce qui a considérablement réduit la biomasse microbienne, a des répercussions sur l'abaissement de la synthèse des protéines microbiennes.

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Section: Resultsmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

An in-vitro evaluation of the potentials of turmeric as phytogenic feed additive for rumen modification

Aderinboye

Olanipekun

2021

NJAP

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“…Curcuma domestica has bioactive, antioxidant, and antibacterial components (Kebede, Forsido, Tola & Astatkie, 2021). Dayak Jangkang people also use plants from the family Piperaceae.…”

Section: Discussionmentioning

confidence: 99%

Potential of medicinal plants for internal diseases in the dayak jangkang community, sanggau regency, west kalimantan, indonesia

Ege

Julung

Supiandi

et al. 2021

BIO

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Dayak Jangkang people’s knowledge about the potential use of plants as medicine to cure internal diseases has not been found in the scientific literature. This research aims to record the types of plants (local name, scientific name, family), plant organs used, processing methods, specifications of plant benefits used by Dayak Jangkang people to treat internal diseases. The research approach used is qualitative descriptive. The data collection tool used is a semi-structured interview sheet. The informant who helped the research process was as many as ten people. Informant was determined using purposive sampling techniques. The data is analyzed descriptively based on interviews and literature studies. The results of the study were obtained as many as 34 types of plants that were used by the Dayak Jangkang tribe to treat internal diseases. The number of families used as many as 19, with the most families being Zingiberaceae.

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“…TPC was estimated by Folin-Ciocalteu reagent using previously reported method with some modifications [27,29] . TPC of various fractions of C. serratum roots were determined using calibration curve of standard Gallic Acid (GA).…”

Section: Estimation Of Total Phenolic Content (Tpc)mentioning

confidence: 99%

Reversed-Phase High-Performance Liquid Chromatography Quantification, Gas Chromatography-Mass Spectrometry Study and In Vitro Antioxidant Potential of Clerodendrum serratum Linn. Roots

Hase¹,

Waghmare²,

Kadam³

et al. 2022

IJPS

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Hase et al.: Antioxidant Potential of Clerodendrum serratum Linn. RootsThe present study was aimed to identify and to quantify the phytoconstituents by gas chromatography-mass spectrometry, reversed phase-high performance liquid chromatography techniques and further to evaluate their in vitro antioxidant potential. In this study, the roots of Clerodendrum serratum Linn. was subjected to soxhlet extraction using n-hexane, chloroform, ethyl acetate and ethanol solvents and the obtained extracts were analyzed by gas chromatography-mass spectrometry technique. The caffeic acid and beta-sitosterol were quantified from the extracts using reversed phase high performance liquid chromatography technique. Total phenolic and flavonoid content were determined using established methods viz. Folin-Ciocalteu and aluminium chloride colorimetric assay. Antioxidant potential was assessed using in vitro methods such as 2, 2-diphenyl-1-picrylhydrazyl scavenging activity; ferric reducing ability of plasma assay and total antioxidant activity. The gas chromatography-mass spectrometry analysis revealed the presence of 48 compounds, out of which 41 compounds were identified and among them caffeic acid and beta-sitosterol were quantified using reversed phase high performance liquid chromatography technique. The abundance of phenolic and flavonoid content was found in ethyl acetate and residual aqueous fractions. The half maximal inhibitory concentration values of 2, 2-diphenyl-1-picrylhydrazyl assay was found to be 1.24, 3.36, 10.61 μg/ml for the residual aqueous fraction, ethyl acetate and chloroform fractions respectively and the total antioxidant activity was found to be 960±0.25, 766±0.14 and 816.6±0.28 μg/mg for the chloroform, ethyl acetate and residual aqueous fractions respectively showing strong antioxidant activity. The ferric reducing ability of plasma assay showed strongest reducing power for residual aqueous fraction and ethyl acetate fractions. The results showed that the residual aqueous fraction and ethyl acetate fractions had strong antioxidant potential. It may be concluded from the results that the Clerodendrum serratum Linn. roots possesses significant antioxidant potential may be due to presence of potent phenolic and flavonoid compounds and these finding supports the traditional use of plant to treat the oxidative stress and related disorders.

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Free radical scavenging capacity, antibacterial activity and essential oil composition of turmeric (Curcuma domestica) varieties grown in Ethiopia

Cited by 38 publications

References 38 publications

An in-vitro evaluation of the potentials of turmeric as phytogenic feed additive for rumen modification

An in-vitro evaluation of the potentials of turmeric as phytogenic feed additive for rumen modification

Potential of medicinal plants for internal diseases in the dayak jangkang community, sanggau regency, west kalimantan, indonesia

Reversed-Phase High-Performance Liquid Chromatography Quantification, Gas Chromatography-Mass Spectrometry Study and In Vitro Antioxidant Potential of Clerodendrum serratum Linn. Roots

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