The isolation and characterization of polysaccharides from longan pulp

Yang, Chul-Ju; He, Ning; Ling, Xueping; Ye, Meiling; Zhang, Chenxiao; Shao, Wenyao; Yao, Chuanyi; Wang, Zhiyuan; Li, Qingbiao

doi:10.1016/j.seppur.2008.05.004

Cited by 90 publications

(53 citation statements)

References 23 publications

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“…Extraction of the date syrup with ultrasonic waves: The extraction procedure was also repeated at ratio 1:3 W/D ratio with using ultrasonic device (Hielscher, Model UP400S, 400 W, with 14 mm tip diameter, Germany) at different power of ultrasonic device (15,20 and 25%). After blinding, each sample, in triplicate, was placed in an Erlenmeyer flask (1 L), and water bath at 40°C for 2 h and performed to ultrasonic for 60 min.…”

Section: Methodsmentioning

confidence: 99%

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Liquid Sugar Extraction from Date Palm (Phoenix dactylifera L.) Fruits

El-Sharnouby¹,

Aleid²,

Al-Otaibi³

2014

J Food Process Technol

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In date syrup manufacturing, date fruits (Phoenix dactylifera L.) are mixed with a suitable amount of water with heating at a temperature greater than 70°C for about 1 h. These conditions are not satisfactory for extraction greater amount of liquid sugar (date syrup). In addition, overheating for an extended period could damage nutritious materials and changes product's color. In this study, pectinase/cellulase enzymes and sonication processes were used to achieve maximum syrup extraction from a date variety (Reziz) compared with classical method. The following variables were examined: fruit/water ratio, mixture of enzymes percent and ultrasonic power. Enzymes and Ultrasound were applied for improving the quantity and quality of extracted syrup. Date extract was filtered with filter system (Novox 200, filtrox) which could result entirely a clear syrup and then concentrated by a rotary evaporator until about 75% total solids to produce higher quality syrup. Physicochemical properties of each collected sample during process were evaluated. Results showed that sonication power 25% at ratio 1/3 D/W could lead to a higher extraction of RSS (Recovery of Soluble Solids) (74.30%) in a shorter time with a better physicochemical quality of syrup in comparison to mixture of enzymes 1.0% (66.70%) and classical methods of extraction (58.45%). Data indicated the possibility of employing ultrasound (25%) or enzymes processes (pectinase/ cellulase 0.1%) for producing greater syrup amount highly desirable for use in food product development.

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Section: Methodsmentioning

confidence: 99%

“…The identification and quantificatin of Sugars (glucose, fructose and sucrose was conducted using HPLC (Agilent Technologies, 1260 Model Infinity,USA) with refractive index detection as described by [15]. The separation was carried out using a purospher star NH2 column (4.6∈250 mm∈5 µm, Merck, Germany).…”

Section: Sugarsmentioning

confidence: 99%

Liquid Sugar Extraction from Date Palm (Phoenix dactylifera L.) Fruits

El-Sharnouby¹,

Aleid²,

Al-Otaibi³

2014

J Food Process Technol

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“…The characteristic band of carbonyl stretching appeared at 1650 cm -1 (Zheng et al, 2005). The absorption peaks at 1407 cm -1 and 1378 cm -1 corresponded to the stretching vibration of C-O of uronic acid (Yang et al, 2008). The strong absorption at 1073 cm -1 was dominated by the glycosidic linkage C-O-C stretching vibration contribution (Yang et al, 2009).…”

Section: Ir Analysis Of Asp-1mentioning

confidence: 99%

Isolation, identification, and antioxidant activity of polysaccharides from the shell of abalone (Haliotis discus hannai Ino)

et al. 2014

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ABSTRACT. In this study, two antioxidative substances, a homogeneous polysaccharide [abalone shell polysaccharide (ASP-1), corresponding to the first peak by size exclusion chromatography] and a non-polysaccharide compound [abalone shell compound (ACS-2), corresponding to the second peak by size exclusion chromatography], were extracted from the abalone (Haliotis discus hannai Ino) shell. We primarily focused on the investigation of ASP-1. As a heteropolysaccharide, ASP-1 is comprised of 9.3% uronic acid and 86.4% saccharide, the latter including mannose, ribose, rhamnose, glucose, galactose, arabinose, and two unknown monosaccharides, NO1 and NO2, with a mass ratio of 9.5:10.1:2.2:18.2:21.8:5.5:16.5:16.2. The antioxidant activity assays indicated that 5.0 mg/mL ASP-1 has significant scavenging effects on superoxide radicals (86.2%) compared to the positive control of ascorbic acid (95.6%).

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“…Ultrasound has great influence on the cavitation threshold, which is responsible for acoustic cavitation and also results in the formation of cavitational nucleus and been investigated to extract all kinds of materials from various plant materials [17,18]. As shown in Fig.2, ultrasonic wave exhibited positive effect with the increase of time.…”

Section: Effects Of Extraction Solvent and Timementioning

confidence: 99%

“…The saponification of free sterol studied by Yan et al showed that the free sterol content in the feed solution after the saponification increased from 6.64 to 9.30% as the NaOH/SODD (soybean oil deodorizer distillate) mass ratio increased from 0.17/1 to 0.33/1(w/w) [17]. In our study, the free phytosterols content in CS was 5.66mg/g and increased to 7.76 mg/g in the feed solution after CS was saponified.…”

Section: Effect Of the Saponification On Phytosterols Of Csmentioning

confidence: 99%

Extraction of Phytosterols from Corn Silk

Zhang¹

2018

dtetr

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Abstract. An efficient ultrasonic assisted extraction procedure of phytosterols was established from corn silk (CS). The orthogonal test was applied to optimize the process parameters and a maximum phytosterols recovery as high as 10.59±0.12 mg/g was achieved by ultrasonic treatment for 55 min with liquid-solid ratio of 12:1 at 35 ℃, 220 w. The ultrasonic extraction temperature has the most significant effect on extraction yield of phytosterols.

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The isolation and characterization of polysaccharides from longan pulp

Cited by 90 publications

References 23 publications

Liquid Sugar Extraction from Date Palm (Phoenix dactylifera L.) Fruits

Liquid Sugar Extraction from Date Palm (Phoenix dactylifera L.) Fruits

Isolation, identification, and antioxidant activity of polysaccharides from the shell of abalone (Haliotis discus hannai Ino)

Extraction of Phytosterols from Corn Silk

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