Antioxidant and antibacterial activity of leaves of Etlingera species (Zingiberaceae) in Peninsular Malaysia

Chan, Eric Wei Chiang; Lim, Yau Yan; Omar, Mohammed

doi:10.1016/j.foodchem.2007.03.023

Cited by 254 publications

(259 citation statements)

References 24 publications

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“…Phenolic compounds of methanolic extract of raw and processed Guava were identified using a method introduced by [15]. Briefly HPLC analyses was performed on HPLC-1100 system, equipped with a thermostatically controlled column oven and a UV detector set at 280 nm (Hewlett-Packard, Palo Alto, CA, USA).…”

Section: Analysis Of Phenolic Compounds Using Hplcmentioning

confidence: 99%

Determination of Antioxidant Capacity, Total Phenolics and Antimicrobial Properties of Spray-Dried Guava Extract for Value-Added Processing

Chauhan¹

2014

J Food Process Technol

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To explore the potential use of Guava as a functional food ingredient, aqueous guava extract was filtered to remove insoluble material; the soluble extract was spray-dried with the addition of 7% maltodextrin. Spray dried Guava concentrate showed increased levels of antioxidant capacity (2, 2-diphenyl-1-picrylhydrazyl DPPH assay 3.2 fold) and total phenolics (2.0 fold) but low levels of flavinoids. The addition of maltodextrin during spray-drying resulted in the formation of certain unresolved peaks analyzed by HPLC due to dilution effect, the redistribution of molecular weight is likely beneficial for in vivo absorption and increase its bioavailability. Spray-drying concentration also increased the proportion of ascorbic acid content (118.6 mg/100g) of guava powder and showed effective antimicrobial activity against Shigella (MIC 11mg/ml), E coli (MIC 8 mg/ml) and Candida spp. (MIC<1 mg/ml). The proximate and physiochemical properties showed good quality and increased solubility of guava powder compared to plain guava extract. Overall the spray-dried Guava powder may be a good source of natural antioxidants and profoundly increase use of Guava in value added processing and dietary intake.

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Section: Analysis Of Phenolic Compounds Using Hplcmentioning

confidence: 99%

Determination of Antioxidant Capacity, Total Phenolics and Antimicrobial Properties of Spray-Dried Guava Extract for Value-Added Processing

Chauhan¹

2014

J Food Process Technol

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“…Menurut Jaafar et al (2007) dan Chan et al (2007), pada rimpang honje ditemukan senyawa alkaloid, flavonoid dan minyak atsiri yang bertindak sebagai antioksidan. Berdasarkan penelitian (Jaafar et al, 2007;Chan et al, 2007) tersebut menyimpulkan bahwa minyak atsiri tanaman honje diduga memiliki sifat antioksidan dan penelitian mengenai aktivit as antioksidan minyak atsiri pada bagian kulit buah honje belum pernah dilak ukan.…”

Section: Pendahuluan1unclassified

“…Berdasarkan penelitian (Jaafar et al, 2007;Chan et al, 2007) tersebut menyimpulkan bahwa minyak atsiri tanaman honje diduga memiliki sifat antioksidan dan penelitian mengenai aktivit as antioksidan minyak atsiri pada bagian kulit buah honje belum pernah dilak ukan. Oleh karena itu, penelitian ini bertujuan mengetahui aktivitas antioksidan minyak atsiri kulit buah honje dan pengaruhnya terhadap penghambatan kerusakan oksidatif produk sosis ayam.…”

Section: Pendahuluan1unclassified

Pemanfaatan Minyak Atsiri Kulit Buah Honje Sebagai Antioksidan Produk Sosis Ayam

Sukandar

Muawanah

Rudiana

et al. 2017

jtip

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A study on the inhib ition of oxidative deterioriation of chicken sausage products added with essential oil from honje (Etlingera elatior) ABSTRAKPeneltian terhadap penghambatan kerusakan oksidatif produk sosis ayam yang ditambahkan minyak atsiri kulit buah honje (Etlingera elatior) telah berhasil dilakukan. Tujuan dari penelitian ini adalah mengetahui aktivitas antioksidan minyak atsiri kulit buah honje dan pengaruhnya terhadap penghambatan kerusakan oksidatif produk sosis ayam. Pengujian aktivitas antioksidan min yak atsiri dilakukan terhadap sosis ayam dengan konsentrasi minyak atsiri 0; 0,550; 100; dan 160 µg/mL. Formula yang terbaik dipilih dari hasil uji organoleptik dengan metode uji hedonik menggunakan panelis tidak terlatih dan hasil uji penghambatan kerusakan oksidatif dengan metode uji daya hambat pembentukan malondialdehid. Selain itu, dilakukan pengujian kadar air, abu, lemak, protein, karbohidrat, cemaran logam, dan cemaran mikroba. Hasil penelitian menunjukkan bahwa minyak atsiri kulit buah honje memili ki aktivitas antioksidan (IC50) 21,296 mg/mL dan sosis ayam terbaik yang paling disukai, memiliki daya hambat oksidatif tertinggi 19,41% dan karakteristik proksimat memenuhi standar mutu sosis SNI 01-3820-1995 adalah yang ditambahkan minyak atsiri 160 µg/mL.

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“…The total antioxidant activity was measured by DPPH free radical scavenging method as per standard method [22] with slight modification. Methanol was used as control and Quercetin was used as standards (1mg/ml).…”

Section: Dpph Free Radical Scavenging Assaymentioning

confidence: 99%

Asparagus racemosus extract increases the life span in Drosophila melanogaster

Kumar¹,

Prasanna²,

Ashadevi³

2015

J App Biol Biotech

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Free radicals and oxidative stress are recognized as important factors in the biology of aging as well as in many age-related diseases. Dietary antioxidant plays a potential role in the reduction of age-related diseases. Many medicinal plants are rich source of antioxidants and promote longevity. Drosophila is a suitable animal model to study ageing and oxidative study. This study evaluated the antioxidant property of Asparagus racemosus on longevity and G6PD activity in Drosophila melanogaster. The analyses were carried out in stress and non stress conditions. Longevity increased almost by 29% at low concentration and 41% at high concentration in extract supplemented flies. G6PD level was significantly increased in extract supplemented larval stages than adults. The antioxidant property of Asparagus racemosus increases the larval G6PD activity thus; it extends the lifespan in adults.Abbreviation A. racemosus Asparagus racemosus, ACR Acrylamide, OS Oxidative stress, G6PD Glucose 6 Phosphate Dehydrogenase.

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Antioxidant and antibacterial activity of leaves of Etlingera species (Zingiberaceae) in Peninsular Malaysia

Cited by 254 publications

References 24 publications

Determination of Antioxidant Capacity, Total Phenolics and Antimicrobial Properties of Spray-Dried Guava Extract for Value-Added Processing

Determination of Antioxidant Capacity, Total Phenolics and Antimicrobial Properties of Spray-Dried Guava Extract for Value-Added Processing

Pemanfaatan Minyak Atsiri Kulit Buah Honje Sebagai Antioksidan Produk Sosis Ayam

Asparagus racemosus extract increases the life span in Drosophila melanogaster

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