Clarification of passion fruit juice with chitosan: Effects of coagulation process variables and comparison with centrifugation and enzymatic treatments

Domingues, Rui Carlos Castro; Faria, Sebastião Braz; Silva, Rafael Bernardes; Cardoso, Vicelma Luiz; Reis, Miria Hespanhol Miranda

doi:10.1016/j.procbio.2011.12.002

Cited by 65 publications

(49 citation statements)

References 24 publications

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“…The levels of total soluble solids, which measures and includes carbohydrates, in most cases did not vary significantly until de 35th day (Table 2) but, in contradiction with other reports (Domingues et al, 2012), slightly lower values were found with added chitosan in solution (T3,4). Moreover, the higher amounts of total soluble solids after chitosan addition as powder (Table 2) suggest a direct solvation.…”

Section: Resultscontrasting

confidence: 75%

“…Indeed, proteins denaturation triggered by high hydrostatic pressure, although avoiding changes in the juice taste (Jay et al, 2005), affects juices main structure, decreasing turbidity. Among samples added with chitosan, the lower values of turbidity found with the highest concentrations applied in solution (T2), and at the 35th day with powder (T4), further suggests that with these concentrations the adsorption sites of chitosan became saturated (Shahidi et al, 1999;Rungsardthong et al, 2006;Domingues et al, 2012), limiting the amine functions of chitosan, as coagulant and/or flocculant of anionic components (Rao et al, 2011).…”

Section: Resultsmentioning

confidence: 97%

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Apple juices processed by high hydrostatic pressure: Interaction between chitosan application and quality drift

Lidon

Lara

Bertolo

et al. 2015

Emir. J. Food Agric

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Apple juice submitted to high hydrostatic pressure was supplemented with chitosan (0.6 and 0.8 g L-1, added in powder and solution) and ascorbate in powder (0.06% and 0.08%) or solution (1%), to optimize its amounts and forms of application, as well as the implications on juice quality during a storage period of 35 days. Thru these experiments it was found that dissociation of hydrogen ions, protonation and ascorbate oxidation was significantly affected. Accordingly, significant variations were found in the pH, total soluble solids, titrable acidity, Hue, turbidity and phenols, exogenous added ascorbate and sugars contents. It is concluded that addition of 0.8% chitosan as powder has the most effective action to counterbalance total phenols drift, which correlate with the inhibition of enzymatic browning and green/yellow Hue.

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Section: Resultscontrasting

confidence: 75%

Section: Resultsmentioning

confidence: 97%

Apple juices processed by high hydrostatic pressure: Interaction between chitosan application and quality drift

Lidon

Lara

Bertolo

et al. 2015

Emir. J. Food Agric

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show abstract

“…On the other hand, our results showed that increasing the centrifugation velocity did not improve the process performance (10). Domingues et al found similar results in the clarification of passion fruits juice with centrifugation and enzymatic pretreatments (12). Conclusion Centrifugation improved the permeate flux in the membrane clarification of pomegranate juice due to reduction of the large particles including cellulose, pectin and phenolic compounds.…”

Section: Discussionmentioning

confidence: 59%

Simulation of the Effect of Centrifugation on Membrane Efficiency by Using Computational Fluid Dynamics During the Clarification of Pomegranate Juice

2017

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A B S T R A C T Background and Objectives:Pomegranate juice is prone to turbidity, which makes it hard to preserve and concentrate. Microfiltration is one of the membrane processes that can be used to reduce its turbidity, but, it is prone to membrane fouling. Pretreatment is considered the most effective way to reduce membrane fouling. Materials and Methods:This study simulated the effect of centrifugation on membrane clarification during the filtration of pomegranate juice using computational fluid dynamics. The geometry of the membrane unit was plotted in GAMBIT software and meshed with quad-mapped meshes, and the problem was solved using fluent software. Samples were centrifuged at 2000 and 4000 rpm for 5 and 10 min. Results:The results of simulation showed that centrifugation at 2000 rpm for 10 min had the highest permeate flux. One the other hand, centrifugation at 4000 rpm had the lowest permeate flux. The experimental results were in agreement with the simulation results.Conclusions: Velocity of centrifugation should be controlled to maintain the optimum level and achieve the best results. In this study centrifugation at 2000 rpm improved the process yield.

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“…Hasil ini sesuai dengan hasil penelitian yang dilakukan Domingues et al (2012) yang menunjukkan bahwa jus buah markisa yang dilakukan sentrifugasi pada kecepatan 4000 rpm berpengaruh terhadap penurunan nilai turbiditas dan viskositas. Hal yang sama juga dilaporkan oleh Sagu et al (2014) bahwa peningkatan kecepatan putaran sentrifugasi, maka semakin besar gaya sentrifugal yang dialami oleh bahan, sehingga dua fasa yang tercampur dapat terpisah lebih baik yang ditunjukkan dengan nilai tingkat kejernihan yang paling tinggi pada kecepatan putaran yang paling tinggi (gaya terbesar).…”

Section: Jurnal Ilmu Pangan Dan Hasil Pertanianunclassified

Penjernihan Nira Tebu Dan Nira Sorgum Menggunakan Proses Sentrifugasi Dengan Penambahan Adsorben

Ali

Yuwono²,

Istianah³

2018

JIPHP

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PENDAHULUANIndonesia merupakan negara yang memiliki industri kuliner cukup besar. Perkembangan kuliner cepat saji tersebut akan meningkatkan kebutuhan gula, khususnya untuk bahan baku pemanis untuk makanan dan minuman. Saat ini, penggunaan gula cair dirasa lebih efektif dan praktis karena mudah diaplikasikan (dicampurkan) dengan bahan makanan lainnya. Gula cair yang tersedia saat ini biasanya merupakan hasil pelarutan gula pasir menggunakan air.Pencairan gula pasir yang saat ini banyak dilakukan memiliki beberapa kelemahan diantaranya membutuhkan waktu yang relatif lama, biaya lebih mahal untuk air dan energi panas yang diperlukan.Tanaman sumber gula saat ini yang dikembangkan di Indonesia sebagian besar adalah Tebu. Selain tebu, tanaman lain yang potensial dikembangkan sebagai tanaman sumber gula adalah sorgum manis (Sorghum bicolor L.) karena mempunyai daerah adaptasi yang luas.Tanaman sorgum toleran terhadap kekeringan dan genangan air, dapat berproduksi pada lahan marginal, serta relatif tahan terhadap gangguan hama/penyakit. Budidaya sorgum terbesar di Indonesia terdapat di Jawa Tengah, disusul oleh Jawa Timur (Lamongan, Bojonegoro, Tuban, Probolinggo), DI Yogyakarta, serta NTB dan NTT (Sirappa, 2003).Sorgum manis sangat potensial untuk digunakan sebagai tanaman penghasil gulakarena memiliki banyak kandungan air dan gula. Kandungan gula pada nira sorgum (16.

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Clarification of passion fruit juice with chitosan: Effects of coagulation process variables and comparison with centrifugation and enzymatic treatments

Cited by 65 publications

References 24 publications

Apple juices processed by high hydrostatic pressure: Interaction between chitosan application and quality drift

Apple juices processed by high hydrostatic pressure: Interaction between chitosan application and quality drift

Simulation of the Effect of Centrifugation on Membrane Efficiency by Using Computational Fluid Dynamics During the Clarification of Pomegranate Juice

Penjernihan Nira Tebu Dan Nira Sorgum Menggunakan Proses Sentrifugasi Dengan Penambahan Adsorben

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