Antioxidant Properties of Indigenous Raw and Fermented Salad Plants

Rafat, Arash; Philip, Koshy; Muniandy, Sekaran

doi:10.1080/10942910903312395

Cited by 6 publications

(4 citation statements)

References 19 publications

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“…[10] According to a study by Rafat et al, Ulam raja showed significant superoxide dismutase and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity among plants such as lemon grass, garlic, turmeric, and "Hempedu bumi." [11] Phytochemicals such as proanthocyanidins, quercetin glycosides such as quercetin-3-O-glucoside, quercetin-3-O-arabinofuranoside, quercetin-3-O-rhamnoside, quercetin-3-O-glucoside, quercetin deoxyl-hexose, chlorogenic, neochlorogenic, cryptochlorogenic acid, caffeic acid, ferulic acid, and (+) catechin were detected in Ulam raja. [1,12,13] In addition, Ulam raja was also found to carry antifungal and antibacterial activities.…”

Section: Introductionmentioning

confidence: 97%

Total phenolic content and antioxidant activity of Ulam raja (Cosmos caudatus) and quantification of its selected marker compounds: Effect of extraction

Seyedreihani

Tan

Alkarkhi

et al. 2016

International Journal of Food Properties

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The effect of heating time (30, 45, and 60 min) and temperature (45, 65, and 85°C) on the extraction yield (total soluble solids) of Ulam raja (Cosmos caudatus) was studied using face-centered composite designresponse surface methodology. Total phenolic content and antioxidant activity (TEAC DPPH) of samples obtained by aqueous extraction under different temperature and time were determined using Folin-Ciocalteau and 2,2-diphenyl-1-picrylhydrazyl scavenging activity assays, respectively. The yield, total phenolic content, and TEAC DPPH of Ulam raja extracts ranged as 3.0-4.2°Brix, 36.09-37.76 mg gallic acid equivalent/g, and 121.17-146.84 µmol Trolox equivalent/g of plant material on dry basis, respectively. Yield and TEAC DPPH of samples were significantly influenced (p < 0.05) by the extraction conditions. Meanwhile, no significant effect (p > 0.05) on total phenolic content was observed. Extraction of Ulam raja at 85°C for 30 min resulted in higher yield and TEAC DPPH of the extract. The chromatographic and spectral data confirmed the presence of several flavonoids in the lyophilized Ulam raja extract, i.e., quercitrin, catechin, and rutin, and their quantities were also reported as 36.9, 25.0, and 8.2 mg/g of Ulam raja extract, respectively.

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Section: Introductionmentioning

confidence: 97%

Total phenolic content and antioxidant activity of Ulam raja (Cosmos caudatus) and quantification of its selected marker compounds: Effect of extraction

Seyedreihani

Tan

Alkarkhi

et al. 2016

International Journal of Food Properties

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“…Cosmos caudatus is shown to contain flavonoids [ 30 ] and ascorbic acid [ 31 ]. It has also been shown to exert antioxidant activity [ 32 ]. This may contribute to the bone protective effects of C. caudatus observed in the present study.…”

Section: Discussionmentioning

confidence: 99%

The Effects ofCosmos caudatuson Structural Bone Histomorphometry in Ovariectomized Rats

Mohamed

Khee

Shuid

et al. 2012

Evidence-Based Complementary and Alternative Medicine

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Osteoporosis is considered a serious debilitating disease. Cosmos caudatus (ulam raja), a plant containing antioxidant compounds and minerals, may be used to treat and prevent osteoporosis. This study determines the effectiveness of C. caudatus as bone protective agent in postmenopausal osteoporosis rat model. Thirty-two female rats, aged 3 months old, were divided into 4 groups. Group one was sham operated (sham) while group two was ovariectomized. These two groups were given ionized water by forced feeding. Groups three and four were ovariectomized and given calcium 1% ad libitum and force-fed with C. caudatus at the dose of 500 mg/kg, respectively. Treatments were given six days per week for a period of eight weeks. Body weight was monitored every week and structural bone histomorphometry analyses of the femur bones were performed. Ovariectomy decreased trabecular bone volume (BV/TV), decreased trabecular number (Tb.N), and increased trabecular separation (Tb.Sp). Both calcium 1% and 500 mg/kg C. caudatus reversed the above structural bone histomorphometric parameters to normal level. C. caudatus shows better effect compared to calcium 1% on trabecular number (Tb.N) and trabecular separation (Tb.Sp). Therefore, Cosmos caudatus 500 mg/kg has the potential to act as the therapeutic agent to restore bone damage in postmenopausal women.

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“…Dalam 100 g daun kenikir terdapat 93 g air, 3 g protein, 0.4 g lemak, 0.4 g karbohidrat, 1.6 g serat, 270 mg Ca dan 0.9 mg vitamin A (Susila 2012). Selain itu daun kenikir memiliki khasiat, karena kandungan antioksidannya yang tinggi (Rafat et al 2011). Menurut Lotulung et al, (2001), daya antioksidan daun kenikir memiliki harga IC50 sebesar 70 mg/L.…”

Section: Pendahuluanunclassified

PERTUMBUHAN DAN PRODUKSI TANAMAN KENIKIR (Cosmos caudatus Kunth.) PADA BERBAGAI TINGKAT NAUNGAN

Revianto

Rahayu

Mulyaningsih

2018

JAG

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ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh naungan (paranet) terhadap pertumbuhan dan produksi tanaman sayuran daun kenikir. Penelitian dilaksanakan pada bulan April sampai dengan September 2016 di Kebun Percobaan Agroteknologi Universitas Djuanda Bogor. Penelitian ini dilakukan dengan menggunakan rancangan petak terbagi. Sebagai petak utama adalah tingkat naungan, yaitu 0% (tanpa naungan), 25%, 50%, dan 75%. Anak petak dalam penelitian ini adalah daerah asal bibit yaitu Bogor, Cianjur, danSukabumi. Penyusunan petak utama dan anak petak menggunakan rancangan acak lengkap. Hasil penelitian menunjukkan bahwa pemberian naungan 50% dan 75% pada 8 MST nyata menurunkan tinggi tanaman, panjang daun, diameter batang, bobot basah dan kering panen, tetapi meningkatkan lebar daun kenikir. Jumlah daun kenikir asal Sukabumi dan Cianjur lebih banyak dibandingkan dengan asal Bogor, kandungan klorofil daun kenikir asal Cianjur lebih banyak dibandingkan dengan asal Sukabumi dan Bogor, tetapi hasil panen ketiga aksesi tidak berbeda nyata. Kata kunci : kandungan klorofil, rancangan petak terbagi, asal bibit, hasil panen ABSTRACTThis study was aimed at assessing the effects of shade (paranet) on the growth and production of kenikir (Cosmos caudatus). The study was conducted from April to September 2016 at the Agrotechnology Trial Farm of Djuanda University, Bogor. A split plot completely randomized design was used with shade levels, namely 0 (no shade), 25, 50, and 75% as the main plot and places of origin, namely Bogor, Cianjur, and Sukabumi as the sub plot. Results showed that 50 and 75% shades at 8 weeks after planting (WAP) significantly decreased plant height, leave length, stem diameter, harvest fresh weight and harvest dry weight. Leaf width of kenikir was found to be higher. Number of leaves of kenikir of Sukabumi and Cianjur origins was higher than that of Bogor origin. Chlorophyl content of kenikir of Cianjur origin was higher than that of Sukabumi and Bogor origins. However, biomass yield harvested from all acessions was not different.

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Antioxidant Properties of Indigenous Raw and Fermented Salad Plants

Cited by 6 publications

References 19 publications

Total phenolic content and antioxidant activity of Ulam raja (Cosmos caudatus) and quantification of its selected marker compounds: Effect of extraction

Total phenolic content and antioxidant activity of Ulam raja (Cosmos caudatus) and quantification of its selected marker compounds: Effect of extraction

The Effects ofCosmos caudatuson Structural Bone Histomorphometry in Ovariectomized Rats

PERTUMBUHAN DAN PRODUKSI TANAMAN KENIKIR (Cosmos caudatus Kunth.) PADA BERBAGAI TINGKAT NAUNGAN

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