Determination of oil palm fresh fruit bunch ripeness—Based on flavonoids and anthocyanin content

Hazir, Mohd Hafiz Mohd; Shariff, Abdul Rashid Mohamed; Amiruddin, Mohd Din

doi:10.1016/j.indcrop.2011.10.020

Cited by 58 publications

(38 citation statements)

References 39 publications

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“…Other compounds, such as total lignin (21.87%), ash (1.90%), extractives in water (3.80%), extractives in ethanol (10.01%) and moisture (6.46%), were similar to those reported in the literature (Hamzah et al, 2011;Ferrer et al, 2013;Palamae et al, 2014). However, the differences seen in the OPEFB compositions as compared with other studies could be due to the maturity degree of the fresh fruit bunches, the geographic regions, and the soil conditions (Hazir et al, 2012).…”

Section: Composition Of Empty Fruit Bunchessupporting

confidence: 83%

Xylose recovery from dilute-acid hydrolysis of oil palm (Elaeis guineensis) empty fruit bunches for xylitol production

Manjarrés-Pinzón¹,

Arias-Zabala²,

Londoño³

et al. 2017

Afr. J. Biotechnol.

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The aim of this study was to evaluate the effect of different process conditions, such as the sulfuric acid concentration, contact time, solid:liquid ratio and particle size, on the xylose recovery and the formation of by-products from oil palm empty fruit bunch (OPEFB) with dilute-acid hydrolysis. Moreover, an adapted and non-adapted strain of the yeast Candida guilliermondii was used to obtain xylitol from the optimal hydrolysate. Xylose, glucose, hydroxymethylfurfural (HMF) and acetic acid in the acid hydrolysate were analyzed with high performance liquid chromatography (HPLC). A BoxBehnken-based design was used to find the combination of factors that maximized the formation of xylose in the hydrolysate optimization process. The fermentation to obtain xylitol from the optimized hydrolysate of OPEFB with adapted and non-adapted C. guilliermondii strains was made in 100 ml Erlenmeyer flasks at 30°C for 96 h at 200 rpm in an incubator shaker. The maximum xylose concentration (32.59 g L -1) was obtained at 121°C, for 30 min, with a 1:8 solid:liquid ratio, 2% acid concentration and particle size of around 4 cm. With the same conditions, the inhibitor concentrations, such as HMF, glucose and acetic acid, were 0.023, 1.033 and 11.078 g L -1, respectively. The optimized conditions were the same as previously described. The higher xylitol productivity (10.3 g L -1) and yield (0.43 g g -1) were obtained by fermentation with non-adapted C. guilliermondii strains from the optimized hydrolysate of OPEFB without the need for detoxification. It is not necessary to make an adaptation of C. guilliermondii in the optimized hydrolysate of OPEFB to produce xylitol.

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Section: Composition Of Empty Fruit Bunchessupporting

confidence: 83%

Xylose recovery from dilute-acid hydrolysis of oil palm (Elaeis guineensis) empty fruit bunches for xylitol production

Manjarrés-Pinzón¹,

Arias-Zabala²,

Londoño³

et al. 2017

Afr. J. Biotechnol.

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“…On the other hand, studies carried out by Hazir, Shariff & Amiruddin (2012), and Singh, Tan, Panandam, Rahman, Ooi, Low, Sharma, Jansen & Cheah (2009), found that raw oil obtained from E. oleifera has high levels of oleic and linoleic acids, but low levels of palmitic acid, and in top of this, it also has other saturated fatty acids, similar in composition to olive oil.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical characterization of bunches from American oil palm (Elaeis oleifera H.B.K. Cortes) and their hybrids with African oil palm (Elaeis guineensis Jacq.)

Chaves¹,

Moreno

Salinas

2018

Acta Agron.

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El objetivo de este estudio fue realizar un análisis comparativo de las características físicas y químicas de racimos de genotipos de Elaeis oleifera y de sus híbridos interespecíficos OxG con Elaeis guineensis, determinando los componentes y el potencial del aceite del racimo, y la calidad de los aceites, analizando el contenido de ácidos grasos, vitamina E y carotenos. En el estudio se utilizaron racimos provenientes de inflorescencias sin polinización asistida con la presencia perimetral de E. guineensis. Se utilizó un diseño experimental completamente al azar con tres unidades experimentales, cada una conformada por tres racimos. Los mayores cuajados del fruto se encontraron en el genotipo de E. oleifera Sinú (76,53 %) y el híbrido OxG II (72,64 %). Los potenciales de extracción de aceite fueron superiores en los materiales híbridos OxG destacándose el II (20,82 %). Las palmas E. oleifera presentaron mejores perfiles de ácidos grasos, destacándose los materiales del genotipo Sinú (79,1 % de ácidos grasos insaturados) y los del híbrido II (70,2 %). Para el contenido de vitamina E se confirmó la alta calidad del aceite de los materiales de E. oleifera, sobresaliendo el genotipo Coarí (1.006,7 ppm) y el híbrido II (1.549,6 ppm); el material del genotipo Sinú registró el mayor contenido de carotenos totales (1.524,7 ppm).

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“…The decline in flavonoid content over the course of maturation was also observed in the oil palm fresh fruit bunches. 17 The higher concentrations of flavonoid compounds in younger (unripened stage) fruit as compared to those in semi-ripe and fully-ripe fruits could be explained by the fact that in the later stages of ripening different phenolic acids might have condensed to form complex phenolic compounds such as tannins and lignin etc. 18 The Total Tannin content was observed to be high in unripened stage than ripened stage with mean values of 48.17±1.32 and 10.54±1.84 mg TAE/g FW.…”

Section: Table 1: Quantitative Analysis Of Different Phytochemicals Omentioning

confidence: 99%

Untitled

2016

IJPSR

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Phoenix sylvestris Roxb, commonly known as date sugar palm or wild date palm, grows naturally in the tropics and subtropics of the Indian subcontinent. The present study was aimed for phytochemical evaluation and to develop the high performance thin layer chromatography (HPTLC) fingerprint profile of methanolic extract of P. sylvestris at two ripening stages. The powdered plant material was extracted using methanol. Quantitative analysis of phytochemicals and HPTLC fingerprinting analysis were carried out. The quantitative analysis of the phytochemicals revealed the presence of various amounts of total phenolic, total flavonoids and total tannins. These phytochemicals were significantly higher in the unripened stage than ripened stage. The HPTLC fingerprinting analysis was carried for phenolic compounds by using Camag Linomat 5 instrument which revealed the presence of phenolic compounds in two stages of P. sylvestris. HPTLC data revealed that unripened extract has high quality phytochemicals than ripened extract. The phytochemical changes of P. sylvestris fruit ripening clearly explained its growth, development and ripening stages. INTRODUCTION:The importance of wild plants in subsistence agriculture in the developing world as a food supplement and as a means of survival during times of drought, famine has been overlooked. The consumption of wild plants seems more common and widespread in food insecure areas where a wide range of species is consumed. Local people know about the importance and contribution of wild plants in their daily diet. Wild plant species continue to provide important energy and micronutrient needs during drought and social and political unrest.

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Determination of oil palm fresh fruit bunch ripeness—Based on flavonoids and anthocyanin content

Cited by 58 publications

References 39 publications

Xylose recovery from dilute-acid hydrolysis of oil palm (Elaeis guineensis) empty fruit bunches for xylitol production

Xylose recovery from dilute-acid hydrolysis of oil palm (Elaeis guineensis) empty fruit bunches for xylitol production

Physicochemical characterization of bunches from American oil palm (Elaeis oleifera H.B.K. Cortes) and their hybrids with African oil palm (Elaeis guineensis Jacq.)

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