Correlation between Flavour Compounds and Sensory Properties of Potherb Mustard (Brassica juncea, Coss.) Pickle

2007 ◽  
Vol 13 (6) ◽  
pp. 423-435 ◽  
Author(s):  
Dayun Zhao ◽  
Jian Tang ◽  
Xiaolin Ding
Keyword(s):  
Brassica Juncea ◽  
Latent Variables ◽  
Yangtze River Delta ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Large Set ◽  
Chemical Parameters ◽  
Flavour Compounds ◽  
Umami Taste ◽  
Physico Chemical

To characterise the flavour of the indigenous Chinese potherb mustard (Brassica juncea, Coss.) pickle, 28 samples representing two typical types with different brining storage time were sourced from 14 cities in the Yangtze River Delta Megalopolis area in China, either short time storage or long time storage pickles sampled from cities open markets. Pickle samples were assessed by descriptive sensory evaluation conducted using a trained panel and an established pickle flavour lexicon. Pickle samples were also analysed for flavour components, as expressed by physico-chemical parameters. The relationships between the flavour compounds and sensory properties of pickles were studied by the partial least squares (PLS) regression method. Results demonstrated that some latent variables both in the independent variables (physico-chemical parameters) and dependent variables (taste sensory attributes) can be extracted to build the PLS models for prediction. PLS1 regression of sensory data revealed that preference was predominantly related to umami taste, whereas umami taste was mainly related to free amino acid of glutamic acid and aspartic acid contents in the pickle juice. The biplot of PLS2 with all the samples and variables explained 100% of the X-variables (instrumental measurements) and 85% of the Y-variables (taste sensory attributes). The prediction abilities of the PLS models obtained yield good results for the prediction of taste sensory characteristics of potherb mustard pickle according to physico-chemical parameters analysis. However, the total instrumental analysing parameters collected for judgement of potherb mustard pickle quality was a rather large set of data, sensory values evaluated by trained panelists are relatively convenient to obtain. These results illustrated the application of multivariate analysis as an effective strategy for improving the quality of potherb mustard pickles.

scholarly journals Sensorial, Melissopalynological and Physico-Chemical Characteristics of Honey from Babors Kabylia’s Region (Algeria)

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 225
Author(s):  
Asma Ghorab ◽  
María Shantal Rodríguez-Flores ◽  
Rifka Nakib ◽  
Olga Escuredo ◽  
Latifa Haderbache ◽  
...  
Keyword(s):  
Sensory Properties ◽  
Chemical Components ◽  
Chemical Characteristics ◽  
Pollen Spectrum ◽  
Botanical Origin ◽  
Flavonoid Content ◽  
Chemical Parameters ◽  
High Tendency ◽  
Physico Chemical ◽  
Pollen Types

This study aimed to characterize the honeys of Babors Kabylia through sensory, melissopalynological and physico-chemical parameters. Thirty samples of honey produced in this region were collected over a period of two years and analyzed. All the samples presented physico-chemical parameters in conformity with legislation on honey quality, with few exceptions, linked mainly to beekeeping management. The pollen spectrum revealed a great diversity with 96 pollen types. The main pollen types were spontaneous species as Fabaceae (Hedysarum, Trifolium, Genisteae plants), Asteraceae plants, Ericaceae (Erica arborea L.) or Myrtus and Pistacia. The sensory properties of samples showed a high tendency to crystallization, the colors were from white to brown, but most of them had gold color. Smell and odor corresponded mainly to vegetal and fruity families and in taste perceptions besides sweetness highlighted sourness and saltiness notes. Seventeen samples were polyfloral, one was from honeydew and twelve were monofloral from heather, genista plants, sulla, blackberry or Asteraceae. Heather and the honeydew samples showed the darkest color, the highest electrical conductivity and phenol and flavonoid content. A statistical analysis based on the most representative pollen types, sensory properties and some physico-chemical components allowed the differentiation of honey samples in terms of botanical origin.

scholarly journals Gluten Free Biscuits in Local Market from Sibiu

2018 ◽  
Vol 10 (1) ◽  
pp. 13-16
Author(s):  
Cosmina-Mădălina Cherăţoiu ◽  
Mihai Ognean ◽  
Claudia Felicia Ognean ◽  
Ioan Danciu
Keyword(s):  
Water Activity ◽  
Sensory Properties ◽  
Breaking Point ◽  
Local Market ◽  
Gluten Free ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Sensory Qualities

Abstract The study was undertaken to assess the quality and sensory properties of gluten free biscuits (GFB) offered in local market in Sibiu. The chemical, physico-chemical parameters and sensory qualities of biscuits were studied. The result revealed that moisture of GFB is normal (<5-6%), the water activity is under 0.3 for 6 of the samples, the breaking point is 0.878 (B7) and 1.564 (B1) as a result of different ingredient used (mix flour-corn, soya, rice for sample B1, rice-chickpeas flour for sample B7). Sensory qualities were determinate by using the hedonic test and showed that the GFB were well accepted by the consumers.

scholarly journals Healthy apple snack developed using microwaves

2018 ◽  
Author(s):  
Maria Dolors Guàrdia ◽  
Dinar Fartdinov ◽  
Josep Comaposada ◽  
Israel Muñoz ◽  
Nieco De Wit ◽  
...  
Keyword(s):  
Final Stage ◽  
Early Stage ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Drying Process ◽  
Time Of Application ◽  
Physico Chemical ◽  
Apple Slices ◽  
Pre Treatment

The MW heating at early or at final stage of drying process to obtain a crispy apple snack was studied. The effect of MW power and time of application was also evaluated on colour, texture, physico-chemical and sensory properties. Apple snack obtained with the MW heating (7.5 min at 3.000 W) at early stage after an osmotic pre-treatment resulted in apple slices more porous and with better sensory attributes than if it is applied at later stage of drying. Keywords: apple; snack; drying; microwaves

scholarly journals Effect of Resistant Cassava Starch on Quality Parameters and Sensory Attributes of Yoghurt

2017 ◽  
Vol 5 (3) ◽  
pp. 353-367 ◽  
Author(s):  
Herve Mwizerwa ◽  
George Ooko Abong ◽  
Michael Okoth ◽  
Martin Ongol ◽  
Calvin Onyango ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Corn Starch ◽  
Starch Content ◽  
Chemical Properties ◽  
Cassava Starch ◽  
Quality Parameters ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Total Solids ◽  
Physico Chemical

Resistant starch is known to impart a number of health benefits to consumers. It is therefore desirable to increase the content of resistant starch in popular foods such as yoghurt. The current research investigated the effect of cassava resistant starch synthesized by heat-moisture treatment of starch from I92/0057 cassava variety on physico-chemical properties and sensory attributes of yoghurt. Cassava starch rich in resistant starch was incorporated into yoghurt in the proportions of 0, 0.1%, 0.5% and 1%. Corn starch (0.6%) was used as control. Yoghurt was stored at 4oC for 21 days and the effect of starch modification on resistant starch content, viscosity, syneresis, total solids, acidity, lactic acid bacteria count and sensory properties were determined on weekly basis. Applying cassava starch rich in resistant starch into yoghurt in the proportions of 0.5% and 1% had significantly higher (p≤0.05) resistant starch content of yoghurt reaching 3.40 g/100 g and 5.58 g/100 g on day one and 1.92 g/100 g and 4.47 g/100 g on day 21, respectively. There was a significant correlation (p≤0.05) between resistant starch concentration and the physico-chemical properties of yoghurt. Yoghurt treated with 1% resistant starch enriched cassava starch had the highest viscosity during cold storage which was determined as 2721.5 mPa s, mPa s, 2650.0 mPa s and 1034.5 mPa s at day 1, day 7, day 14 and day 21 respectively and it had the least syneresis (22.25%). Addition of cassava starch rich in resistant starch significantly increased (p≤0.05) the total solids content of yoghurt but did not significantly (P>0.05) change the sensory properties of yoghurt. The application of 1% of resistant starch enriched cassava starch as yoghurt thickener produces significant quantity of resistant starch in yoghurt with acceptable sensory and physico-chemical properties.

scholarly journals Effects of iodized salt on the physico-chemical parameters and the sensory properties of dry-cured pork loin

Meso ◽  
2018 ◽  
Vol 20 (4) ◽  
pp. 300-306
Author(s):  
Mateja Lušnic Polak ◽  
Tomaž Polak
Keyword(s):  
Sensory Properties ◽  
Iodized Salt ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Chemische Analyse ◽  
Pork Loin

Meersalz wird in der Fleischindustrie vorwiegend für die Zubereitung von haltbaren getrockneten Fleischerzeugnissen verwendet, wobei für die Pasteurisierung und Sterilisierung Pökelsalz verwendet wird, während jodhaltiges Speisesalz bei einem geringeren Anteil der Produkte zum Einsatz kommt. Der Hauptbestandteil von Pökelsalz ist nicht jodiertes Salz (das durch Verdampfung gewonnen wird). Ziel dieser Untersuchung war es zu prüfen, ob sich der Einsatz von Meersalz oder jodhaltigem Meersalz anstatt von nicht jodiertem Salz (das durch Verdampfung gewonnen wird) auf die physikalisch-chemischen Parameter und die sensorischen Eigenschaften von haltbaren getrockneten Fleischprodukten auswirkt. Zu diesem Zweck wurden die Proben des getrockneten Schweinekarrees in drei Gruppen eingeteilt: die erste Gruppe umfasste Proben von frischem Karree, das mit nicht jodiertem Meersalz zubereitet wurde, die zweite Gruppe wurde durch Verwendung von jodiertem Meersalz zubereitet und die Kontrollgruppe durch Verwendung von nicht jodiertem Salz, das durch Verdampfung gewonnen wurde. Die durchgeführten Analysen des getrockneten Schweinekarrees umfassten eine physikalisch-chemische Analyse der wichtigsten Inhaltsstoffe, die Messung der Produkte der Lipidoxidation (reaktive Verbindungen der Thiobarbitursäure und die Peroxidzahl), die Bestimmung der thermodynamischen Wasseraktivität, die instrumentelle Farbanalyse anhand des Chronometers Minolta CR-200b und die sensorische Analyse anhand der Methode der quantitativen deskriptiven Analyse. Obwohl sich bei der Einführung von jodhaltigem Meersalz (mit einem ausgewiesenem Anteil von Kaliumjodid von 26 bis 39 mg pro kg und dem festgelegten Anteil von 15 mg pro l/kg) zeigte, dass Jod die Oxidation der Lipide und der Farbe nicht beschleunigt, wurde bei der sensorischen Bewertung der Eigenschaften im Vergleich zu der Kontrollgruppe (nicht jodiertes Salz, das durch Verdampfung gewonnen wurde) festgestellt, dass jodhaltiges Salz einen unangenehmen Geruch und ein schlechtes Aroma des getrockneten Schweinekarrees verursacht.

scholarly journals Preparation and Quality Evaluation of Processed Cheese Made from Different Cheeses and Paneer

2013 ◽  
Vol 6 ◽  
pp. 84-87
Author(s):  
Upendra Pokharel ◽  
Dipendra Khanal
Keyword(s):  
Chemical Analysis ◽  
Sensory Analysis ◽  
Quality Evaluation ◽  
Sensory Attributes ◽  
Chemical Parameters ◽  
Processed Cheese ◽  
Physico Chemical ◽  
Made In

Processed cheese (PC), a modified form of natural cheese was prepared mixing with different proportions of Cheese and Paneer; Yak cheese and Kanchan cheese (70:30), Yak and Kanchan (30:70), Kanchan and Mozzarella (75:25), Yak, Kanchan, Mozzarella and Paneer (30:45:15:10) and Kanchan and Paneer (85:15) with PC made in DDC, Nepal as a control. Five experimental products were subjected for sensory and physico-chemical analysis. The physico-chemical parameters of processed cheeses were significantly (p<0.05) varied among each other products due to different combination of natural cheeses. The PC made from Yak and Kanchan cheese (30:70) was found to be superior (p<0.05) in terms overall sensory attributes. From the results of physico-chemicals and sensory analysis it was concluded that PC made from Yak and Kanchan (30:70) was the best formulation among all. J. Food Sci. Technol. Nepal, Vol. 6 (84-87), 2010 DOI: http://dx.doi.org/10.3126/jfstn.v6i0.8266

scholarly journals The effect of technological procedure of making burgers on their physico-chemical parameters and sensory properties

Meso ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 122-128
Author(s):  
Tomaž Polak ◽  
Gregor Sok
Keyword(s):  
Sensory Properties ◽  
Chemical Parameters ◽  
Physico Chemical

Einfluss des technologischen Herstellungsverfahrens von Hamburgern auf ihre physikalisch-chemischen und sensorischen Eigenschaften Ziel dieser Arbeit war es festzustellen, wie unterschiedliche Herstellungstechnologien (I. Phosphatzugabe zum Hackfleisch und Fettgewebe am Beginn der Mischung, II. Phosphatzugabe am Ende der Mischung, III. Phosphatzugabe eine halbe Minute vor der Wasser- und Salzzugabe, IV. sequentielle Zugabe von Phosphaten und Salz, Vermischen und erneutes Hacken von grob gehacktem Fleisch) sowie diverse Methoden der thermischen Behandlung (Braten im Ofen bei einer Lufttemperatur von 200 °C und Zubereitung auf einem Klappgrill mit einer Plattentemperatur von 240 °C, bis zum Erreichen der inneren Temperatur von 78 °C) sich auf die Textur und die sensorischen Eigenschaften von Hamburgern auswirken. Bestimmt wurden die physikalisch-chemischen Eigenschaften (pH-Wert, chemische Zusammensetzung, Phosphat-Gehalt), die instrumentellen Texturparameter (Analyse des Texturprofils) und die sensorischen Eigenschaften von Hamburgern (Methode der deskriptiven Analyse). Beim I. Technologieverfahren war der Hamburger etwas fester, trockener und gummiartig, besonders zäh, mit einem dominanten, typischen Rindfleischaroma; das II. Verfahren ergab auch eine etwas zu harte Textur, wobei die Zähheit fast optimal war, während die anderen Eigenschaften sehr ähnlich waren. Die sensorischen Eigenschaften und Texturparameter des anhand des III. Verfahrens hergestellten Hamburgers waren mit den Ergebnissen des I. Verfahrens vergleichbar. Die nach dem IV. Herstellungsverfahren hergestellten Hamburger ergaben ein zarteres Fleisch, eine weniger klebrige und zähe Textur als bei den Hamburgern, die anhand der anderen Verfahren hergestellt wurden. Vom Aspekt der Formerhaltung, Saftigkeit und des Aromas ist es vom gastronomischen Aspekt her besser die Hamburger auf einem Klappgrill zuzubereiten anstatt sie im Ofen zuzubereiten.

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