Clarification and concentration of oligosaccharides from artichoke extract by a sequential process with microfiltration and nanofiltration membranes

Machado, Mariana T. C.; Trevisan, Susane; Pimentel-Souza, Jane D.R.; Pastore, Gláucia Maria; Hubinger, Míriam Dupas

doi:10.1016/j.jfoodeng.2016.02.018

Cited by 57 publications

(24 citation statements)

References 29 publications

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“…An additional difficulty for the treatment of these effluents, as previously said, relies on the variability in time and space of composition and pollutant concentration, as it is very seasonal, and depends on the geographical zone, type of fruit, composition, as well as changes in the production, among others. The typical composition of this wastewater, reported by Iaquinta and co-workers [18], is pH around 6.6, high electrical conductivity (2.56 mS cm −1 ), relatively high COD (1200-1700 mg O 2 L −1 ), and total organic carbon (TOC; 340 mg L −1 ).…”

Section: Membrane Processes For Tomato Manufacturing and Artichoke Wamentioning

confidence: 62%

“…The main producers are Egypt, Italy, and Spain. It is widely consumed as fresh, frozen, or conserved vegetable [18]. Given that just a small part of this vegetable (around 30%) is used in the food industry, artichoke processing generates a huge amount of solid waste (mainly leaves, stems, bracts of the artichoke plant) that is used as animal feedstuff or manure [19] and wastewaters, such as blanching waters, that need to be managed.…”

Section: Membrane Processes For Tomato Manufacturing and Artichoke Wamentioning

confidence: 99%

“…This material contains suspended solids, macromolecules, and prebiotic sugars [18], and it is considered a cheap source of fructo-oligosaccharides. Machado et al [18] examined the clarification, purification, and concentration of artichoke extract by sequential microfiltration (MF)-aimed to clarify the artichoke extract-followed by NF, to purify and concentrate the prebiotic sugars. The study was performed on a laboratory scale and tested different MF and NF membranes as well as different operation pressures.…”

Section: Membrane Processes For Tomato Manufacturing and Artichoke Wamentioning

confidence: 99%

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The Use and Performance of Nanofiltration Membranes for Agro-Industrial Effluents Purification

Macedo¹,

Ochando-Pulido²,

Fragoso³

et al. 2018

Nanofiltration

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Nanofiltration (NF) technology offers several advantages over classic separation processes. NF membranes have been increasingly implemented in water treatment processes (e.g., desalination of brackish water and seawater) and for wastewater (e.g., textile, pulp and paper, pharmaceutical, and agro-industrial). The specific selectivity toward small solutes and the lower energy consumption of NF membranes have enhanced their use. However, some drawbacks need to be faced when NF is applied on an industrial scale. The main drawback is fouling that reduces the production capacity of the plant and shortens the membrane service lifetime if of irreversible nature, thus increasing the operating and capital costs. Moreover, fouling alters the selectivity of the membrane and thus the rejection efficiency. This chapter focuses the use of NF for the treatment of different agro-industrial effluents (such as dairy, tomato, and olive oil) and addresses membrane fouling as the main drawback against NF competitiveness.

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Section: Membrane Processes For Tomato Manufacturing and Artichoke Wamentioning

confidence: 62%

Section: Membrane Processes For Tomato Manufacturing and Artichoke Wamentioning

confidence: 99%

Section: Membrane Processes For Tomato Manufacturing and Artichoke Wamentioning

confidence: 99%

See 1 more Smart Citation

The Use and Performance of Nanofiltration Membranes for Agro-Industrial Effluents Purification

Macedo¹,

Ochando-Pulido²,

Fragoso³

et al. 2018

Nanofiltration

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“…Dies kann in Folge des Rückhalts durch eine auf der Membran gebildete Gelschicht erklärt werden. So zeigt sich bei sogar für die MF ein Rückhalt von Einfachzuckern, der auf die gebildete Gelschicht zurückgeführt wird.…”

Section: Ergebnisseunclassified

Neuer stofflicher Nutzungspfad von Treberpresswasser aus Biertreber unter Einsatz von Membrantrenntechnik in Lebens‐ oder Nahrungsergänzungsmitteln

Grahl

Beitlich

Fechter

et al. 2019

Chemie Ingenieur Technik

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Für Biertreber, das mengenmäßig größte Nebenprodukt im Brauprozess, soll als Zwischenstand eines laufenden Forschungsprojekts ein über den bekannten Stand der bisherigen Trebernutzung hinausgehender Verwertungspfad vorgestellt werden. Der Fokus liegt hierbei auf einer anpassbaren, selektiven Abtrennung der noch enthaltenen Wertstoffe aus dem Treberpresswasser. Es werden Versuche zur gezielten Abtrennung der Inhaltsstoffe für eine spätere stoffliche Nutzung mittels Mikro-, Ultra-und Nanofiltration vorgestellt. Die Eignung verschiedener Membranen wird dabei basierend auf der erreichten Permeabilität sowie dem Rückhalt von Wertkomponentenklassen wie Proteinen und Polyphenolen bewertet. Es konnte u. a. gezeigt werden, dass bei der Mikrofiltration mithilfe einer rotierenden Membran Permeatflüsse im Bereich der kommerziellen Bierfiltration erreichbar sind.A new utilization concept for brewers' spent grains, the main byproduct of the brewing industry, is introduced. First results from an ongoing research project beyond the actual state of the art of brewers' spent grains usage are presented. It is focused on developing an adaptable selective separation procedure of valuable components from press water arising by mechanical dewatering of brewers' spent grains for the use as food additive. Experimental results on micro-, ultra-and nanofiltration for specific separation of the ingredients focused on substance classes are presented. The membrane applicability is evaluated by the membrane permeability and by the retention of valuable components like proteins and polyphenols. Results showed that the microfiltration of press water with a rotating membrane is comparable to commercial beer microfiltration in terms of permeate flux.

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“…Nanofiltration is a more cost-effective and flexible separation process. It has been widely used to separate or purify sugars [ 11 , 12 ] and oligosaccharides [ 13 , 14 , 15 , 16 , 17 , 18 ] from mixtures of carbohydrates. However, the separation is generally based primarily on a difference in size, and therefore cannot be used to separate sugars or isomers that have similar properties and are of similar size [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Separation of Fructose and Glucose via Nanofiltration in Presence of Fructooligosaccharides

et al. 2020

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Fructose and glucose are commonly present together in mixtures and may need to be separated. Current separation methods for these isomers are complex and costly. Nanofiltration is a cost-effective method that has been widely used for separating carbohydrates of different sizes; however, it is not commonly used for such similar molecules. Here, we report the separation of fructose and glucose in a nanofiltration system in the presence of fructooligosaccharides (FOS). Experiments were performed using a pilot-scale filtration setup using a spiral wound nanofiltration membrane with molecular weight cutoff of 1 kDa. We observed three important factors that affected the separation: (1) separation of monosaccharides only occurred in the presence of FOS and became more effective when FOS dominated the solution; (2) better separation was achieved when the monosaccharides were mainly fructose; and (3) the presence of salt improved the separation only moderately. The rejection ratio (Rf/Rg) in a fructose/glucose mixture is 0.92. We reported a rejection ratio of 0.69, which was observed in a mixture of 50 g/L FOS with a fructose to glucose ratio of 4.43. The separation is hypothesized to occur due to selective transport in the FOS layer, resulting in a preferential binding towards fructose.

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Clarification and concentration of oligosaccharides from artichoke extract by a sequential process with microfiltration and nanofiltration membranes

Cited by 57 publications

References 29 publications

The Use and Performance of Nanofiltration Membranes for Agro-Industrial Effluents Purification

The Use and Performance of Nanofiltration Membranes for Agro-Industrial Effluents Purification

Neuer stofflicher Nutzungspfad von Treberpresswasser aus Biertreber unter Einsatz von Membrantrenntechnik in Lebens‐ oder Nahrungsergänzungsmitteln

Separation of Fructose and Glucose via Nanofiltration in Presence of Fructooligosaccharides

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