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Articles 1 - 8 of 8
Full-Text Articles in Food Chemistry
Optical Meets Mechanical: Use Of Luminescence Spectroscopy To Assess Ageing In Biodegradable Films, Louis Colaruotolo
Optical Meets Mechanical: Use Of Luminescence Spectroscopy To Assess Ageing In Biodegradable Films, Louis Colaruotolo
Masters Theses
With the growing concern of the accumulation of plastic-based food packaging waste, the search for bio-based biodegradable packages is on the rise. These materials differ from their petro-based counterparts in their degradation rates, which are much higher in the former. Not only do bio-based biodegradable materials degrade faster during post-usage processes but also they age faster during usage and storage, which affects their performance and functionality. The application of noninvasive testing methods with the capability to report on the matrix’s state could assist in the development of a more ubiquitous way to assess ageing in food packaging, particularly in biodegradable …
Saponin Removal From Quinoa By Abrasion Processing, Luke Lundberg
Saponin Removal From Quinoa By Abrasion Processing, Luke Lundberg
Master's Theses
Quinoa is coated with a thin layer of saponins, glycosylated triterpenoids, that produce a bitter flavor when consumed. The average saponin content in commercial varietals from Bolivia average around 2.7% saponins and organoleptic testing shows the threshold for noticing a bitter flavor is below 0.12% (Medina-Meza et al., 2016). Current industrial processing methods use a combination of abrasion and turbulent water flow to remove saponin. This study will address the following research question: How will grain-to-grain and grain-to-surface abrasion affect the processing time to remove saponin from quinoa? In particular, can effective saponin removal be achieved in less than 10 …
Desarrollo De Una Bebida Refrescante Con Antioxidantes A Base De Café Verde (Coffea Arábica) Y Pulpa De Gulupa (Passiflora Edulis Sims), Iendy Sharik Gil Ruiz, Gina Viviana Deaza Mancera
Desarrollo De Una Bebida Refrescante Con Antioxidantes A Base De Café Verde (Coffea Arábica) Y Pulpa De Gulupa (Passiflora Edulis Sims), Iendy Sharik Gil Ruiz, Gina Viviana Deaza Mancera
Ingeniería de Alimentos
La presente investigación tiene como objeto el desarrollo de una bebida refrescante, el cual aporte la capacidad antioxidante del café verde (Coffea arabica) y la gulupa (Passiflora edulis Sims), incluyendo sus características fisicoquímicas. Para ello, se evaluaron diferentes formulaciones de la bebida refrescante. La bebida se elaboró a partir de la mezcla de una infusión de café verde y pulpa de gulupa previamente caracterizadas, teniendo en cuenta que los niveles de cafeína no superaran lo recomendado por el INVIMA en el Acta 03/06 (250 mg / L). Las formulaciones evaluadas fueron: T1: 0% infusión de café verde, 100% agua (Patrón); …
Thermostable Phytase In Feed And Fuel Industries, Ushasree Mrudula Vasudevan, Amit Jaiswal, Shyam Krishna, Ashok Pandey
Thermostable Phytase In Feed And Fuel Industries, Ushasree Mrudula Vasudevan, Amit Jaiswal, Shyam Krishna, Ashok Pandey
Articles
Phytase with wide ranging biochemical properties has long been utilized in a multitude of industries, even so, thermostability plays a crucial factor in choosing the right phytase in a few of the sectors. Mesophilic phytases are not considered to be a viable option in the feed industry owing to its limited stability in the required feed processing temperature. In the recent past, inclusion of thermostable phytase in fuel ethanol production from starch based raw material has been demonstrated with economic benefits. Therefore, considerable emphasis has been placed on using complementary approaches such as mining of extremophilic microbial wealth, encapsulation and …
Evaluation Of Brewer's Spent Grain Hydrolysate As A Substrate For Production Of Thermostable Α-Amylase By Bacillus Stearothermophilus, Rajeev Ravindran, Gwilym A. Williams, Amit Jaiswal
Evaluation Of Brewer's Spent Grain Hydrolysate As A Substrate For Production Of Thermostable Α-Amylase By Bacillus Stearothermophilus, Rajeev Ravindran, Gwilym A. Williams, Amit Jaiswal
Articles
In the present study, BSG was hydrolysed using cellulolytic enzymes and used as a growth medium supplement for cultivation of the thermophilic bacterium, Bacillus stearothermophilus in the production of α-amylase. A central composite design involving five parameters and four levels viz. starch, peptone, KCl, and MgSO4 along with BSG hydrolysate was used to derive the optimal media composition. The fermentation was conducted using shake flasks for 36 h at a temperature of 50 °C and pH 7.0 at 220 rpm. Optimization trials revealed that maximal amylase production (198.09 U/ml) occurred with a medium composition of starch (0.2% w/v), peptone (0.2% …
Evaluación De La Extracción Por Disolventes De Aceite Crudo A Partir De Café (Coffea Arabica) Afectado Por Broca (Hypothenemus Hampei), Diana Matilde Ostos Pérez, Luz Katherine García De Hoyos
Evaluación De La Extracción Por Disolventes De Aceite Crudo A Partir De Café (Coffea Arabica) Afectado Por Broca (Hypothenemus Hampei), Diana Matilde Ostos Pérez, Luz Katherine García De Hoyos
Ingeniería de Alimentos
Colombia se ha caracterizado internacionalmente por ser uno de los principales productores de café suave de alta calidad con una producción de 13´566.000 de sacos de 60 kg en 2018. El café es importante en la sociedad colombiana, ya que gran parte de la economía y del desarrollo nacional dependen de dicha producción, tanto así, que en veintidós departamentos se siembra el grano. Sin embargo, de todo el café que se produce en Colombia, entre el 5 y 23% se pierde a causa de la broca (Landa, 2017). El presente proyecto pretende darle valor agregado a ese café desperdiciado a …
Development And Diagnostics Of Novel Non-Thermal Plasmatreatment Systems, Laurence Scally
Development And Diagnostics Of Novel Non-Thermal Plasmatreatment Systems, Laurence Scally
Doctoral
Non-thermal plasma (NTP) has been a point of interest in many areas over the last few decades. Much research has been,and continues to beundertaken,to understand the fundamentals of plasma discharges. This is such a broad topic due to the very nature and variable dependencies that set the conditions for plasma discharge to occur. This can come in the form of electrode geometry and spacing, dielectric barrier thickness, humidity of environment, material selection for electrodes and dielectric barriers, the power supply used, and the operating gas(es) used. A lot of these influencing factors can be set and kept constant, but still …
Effect Of Cold Plasma On The Techno-Functional Properties Of Animal Protein Food Ingredients, Juan M. Pérez-Andrés, Carlos Álvarez, Patrick Cullen, Brijesh K. Tiwari
Effect Of Cold Plasma On The Techno-Functional Properties Of Animal Protein Food Ingredients, Juan M. Pérez-Andrés, Carlos Álvarez, Patrick Cullen, Brijesh K. Tiwari
Articles
Proteins, as food ingredients, are employed in the food industry, not only for their high nutritional value, but also because of their techno-functional properties. Modifications of their native structure due to the action of external factors such as pH, temperature or processing by emerging technologies, can lead to changes in their functionality; and consequently, their applicability. The present study investigates the effects of cold atmospheric air plasma on the techno-functional properties of two common food ingredients (haemoglobin and gelatine from pork), and a novel source of functional proteins extracted from a meat co-product (bovine lung protein). Significant effects were found …