scholarly journals Authentication Using Volatile Composition: A Proof-of-Concept Study on the Volatile Profiles of Fourteen Queensland Ciders

Beverages ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 28
Author(s):  
Arron Wilson ◽  
Joel B. Johnson ◽  
Ryan Batley ◽  
Pawan Lal ◽  
Lara Wakeling ◽  
...  
Keyword(s):  
Consumer Satisfaction ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Proof Of Concept ◽  
Volatile Composition ◽  
Analytical Technique ◽  
Volatile Organic ◽  
Volatile Profiles ◽  
Cider Industry ◽  
The Relationship

Although relatively small, the Australian cider industry has experienced significant growth in recent years. One of the current challenges in the industry is the lack of research specific to Australian ciders. Establishing baseline volatile organic compound (VOC) profiles of Australian cider is paramount to developing a better understanding of the industry. This understanding may ultimately be utilized for both the categorization and authentication of existing ciders, and the targeted modification of cider volatiles for the development and improvement of cider quality. This study utilized gas chromatography, coupled with mass spectrometry, to identify key VOCs present in 14 ciders sourced from four different manufacturers in Queensland, Australia. A total of 40 VOCs were identified across the ciders, with significant variation depending on the flavor and manufacturer. Principal component analysis indicated that the ciders were well-separated based on the manufacturer, supporting the prospect of using the volatile composition to discriminate between cider manufacturers. Furthermore, hierarchical cluster analysis highlighted the commonalities and differences in cider composition between different manufacturers, which may be indicative of the varying ingredients and manufacturing processes used to create the ciders. Future studies profiling the volatile composition of larger numbers of Australian ciders are recommended to support the use of this analytical technique for authentication purposes. Likewise, exploration of the relationship between specific processes and VOCs is recommended to fortify an understanding of how to optimize cider production to improve consumer satisfaction.

scholarly journals PERAN KEPUASAN DALAM MEMEDIASI PENGARUH KEPERCAYAAN TERHADAP NIAT BELI ULANG PADA GO-FOOD DI FEB UNUD

2018 ◽  
Vol 7 (10) ◽  
pp. 5197
Author(s):  
Bagus Dwipayana ◽  
Eka Sulistyawati
Keyword(s):  
Factor Analysis ◽  
Path Analysis ◽  
Consumer Satisfaction ◽  
Repurchase Intentions ◽  
Analytical Technique ◽  
The Third ◽  
Buy Back ◽  
High Level ◽  
The Relationship ◽  
Positive Effect

The intention to reuse goods or services is a reflection of the services that quality companies offer so that customers feel satisfied. Referring to the theory of consumer behavior, this study aims to determine the effect of trust and satisfaction with the intention to buy back. The study was conducted in 1873 students of the Faculty of Economics and Business Udayana University, a sample of 95 students was obtained. Analytical technique used is factor analysis and path analysis. The results of testing the first hypothesis shows the positive effect of trust on the intention to buy back. Results of the second hypothesis show satisfaction positive effect on trust. The results of the third hypothesis show satisfaction positive effect on the intention of buy back, and the last fourth hypothesis shows that satisfaction mediates positively the relationship between beliefs on repurchase intentions. The high level of trust and consumer satisfaction will increase the chances of re-buying intention from consumers.

scholarly journals Determination of Volatile Organic Compounds in Selected Strains of Cyanobacteria

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ivan Milovanović ◽  
Aleksandra Mišan ◽  
Jelica Simeunović ◽  
Dajana Kovač ◽  
Dubravka Jambrec ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Volatile Compounds ◽  
Organic Compounds ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Growth Conditions ◽  
Multivariate Techniques ◽  
Microalgal Biomass ◽  
Medium Chain Length ◽  
Volatile Organic

Microalgal biomass can be used in creating various functional food and feed products, but certain species of microalgae and cyanobacteria are known to produce various compounds causing off-flavour. In this work, we investigated selected cyanobacterial strains ofSpirulina,Anabaena, andNostocgenera originating from Serbia, with the aim of determining the chemical profile of volatile organic compounds produced by these organisms. Additionally, the influence of nitrogen level during growth on the production of volatile compounds was investigated forNostocandAnabaenastrains. In addition, multivariate techniques, namely, principal component analysis (PCA) and hierarchical cluster analysis (HCA), were used for making distinction among different microalgal strains. The results show that the main volatile compounds in these species are medium chain length alkanes, but other odorous compounds such as 2-methylisoborneol (0.51–4.48%), 2-pentylfuran (0.72–8.98%),β-cyclocitral (0.00–1.17%), andβ-ionone (1.15–2.72%) were also detected in the samples. Addition of nitrogen to growth medium was shown to negatively affect the production of 2-methylisoborneol, while geosmin was not detected in any of the analyzed samples, which indicates that the manipulation of growth conditions may be useful in reducing levels of some unwanted odor-causing components.

scholarly journals Volatile Composition of Six Horsetails: Prospects and Perspectives

2013 ◽  
Vol 8 (4) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Françoise Fons ◽  
Didier Froissard ◽  
Jean-Marie Bessière ◽  
Alain Fruchier ◽  
Bruno Buatois ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Organic Solvent ◽  
Natural Resources ◽  
Broad Spectrum ◽  
Volatile Composition ◽  
Organic Solvent Extraction ◽  
Volatile Organic ◽  
Volatile Profiles ◽  
Green Odor ◽  
Fruity Odor

Six horsetails were investigated for volatile organic compounds (VOC) by GC-MS using organic solvent extraction. Seventy-five VOC biosynthesized from the shikimic, lipidic and terpenic pathways including isoprenoid derivatives were detected from these putative natural resources. E. palustre var. americana contained mainly lipidic derivatives, i.e., 1-octen-3-ol (mushroom-like odor), ( E)-2-hexenoic acid (fruity odor) and ( E)-2-hexenal (green odor). Many isoprenoid flavour precursors, i.e., 3-oxo-α-ionol (spicy odor) and ( E, E)-pseudoionone (balsamic odor), as well as odorous benzenic derivatives, i.e, phenylethanal (hyacinth, lilac note) and 2-phenylethanol (rose odor) contributed to the odor of E. arvense. The volatile pattern of E. telmateia is dominated by high amounts of isoprenoids and benzenic derivatives. The complex volatile profiles of E. hyemale and E. ramosissimum are based on ferulic acid isomers, along with either ( E)-2-heptenal (green vegetable-like odor) or 4-vinylguaiacol (spicy clove smoky odor) for E. hyemale and E ramosissimum, respectively. The broad spectrum of E. scirpioides shows the lowest VOC content with high amount of isoprenoids (46.9%), mainly ionone derivatives. Equisetum resources are of great interest as bioactive litter and new potential functional feed ingredients.

scholarly journals Characteristic Volatile Fingerprints of Four Chrysanthemum Teas Determined by HS-GC-IMS

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7113
Author(s):  
Zhiling Wang ◽  
Yixin Yuan ◽  
Bo Hong ◽  
Xin Zhao ◽  
Zhaoyu Gu
Keyword(s):  
Gas Chromatography ◽  
Ion Mobility ◽  
Chemical Nature ◽  
Headspace Gas Chromatography ◽  
Volatile Composition ◽  
Volatile Organic ◽  
Headspace Gas ◽  
Overall Evaluation ◽  
Volatile Profiles ◽  
Tea Plants

Volatile composition is an important feature that determines flavor, which actively affects the overall evaluation of chrysanthemum tea. In this study, HS-GC-IMS (headspace-gas chromatography-ion mobility spectrometry) was performed to characterize the volatile profiles of different chrysanthemum tea subtypes. Forty-seven volatiles of diverse chemical nature were identified and quantified. Partial least squares discriminant analysis (PLS-DA) revealed that four chrysanthemum teas were distinct from each other based on their volatile compounds. Furthermore, this work provides reference methods for detecting novel volatile organic compounds in chrysanthemum tea plants and products.

What Does Human Development Index Rating Mean in Terms of Individualism/Collectivism?

2003 ◽  
Vol 8 (2) ◽  
pp. 97-100 ◽  
Author(s):  
Maria José Sotelo ◽  
Luis Gimeno
Keyword(s):  
Human Development ◽  
Human Development Index ◽  
Principal Component ◽  
General Idea ◽  
Development Index ◽  
Low Levels ◽  
The Relationship

The authors explore an alternative way of analyzing the relationship between human development and individualism. The method is based on the first principal component of Hofstede's individualism index in the Human Development Index rating domain. Results suggest that the general idea that greater wealth brings more individualism is only true for countries with high levels of development, while for middle or low levels of development the inverse is true.

HUBUNGAN KEPADATAN BIVALVIA DENGAN PARAMETER LINGKUNGAN DI PESISIR TANJUNG PURA KABUPATEN BANGKA TENGAH

2020 ◽  
Vol 13 (2) ◽  
pp. 112-121
Author(s):  
Sudiyar . ◽  
Okto Supratman ◽  
Indra Ambalika Syari
Keyword(s):  
Negative Impact ◽  
Principal Component ◽  
Environmental Parameters ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Random System ◽  
System Method ◽  
Relationship Of ◽  
The Relationship ◽  
Anadara Granosa

The destructive fishing feared will give a negative impact on the survival of this organism. This study aims to analyze the density of bivalves, distribution patterns, and to analyze the relationship of bivalves with environmental parameters in Tanjung Pura village. This research was conducted in March 2019. The systematic random system method was used for collecting data of bivalves. The collecting Data retrieval divided into five research stasions. The results obtained 6 types of bivalves from 3 families and the total is 115 individuals. The highest bivalve density is 4.56 ind / m², and the lowest bivalves are located at station 2,1.56 ind / m²,  The pattern of bivalve distribution in the Coastal of Tanjung Pura Village is grouping. The results of principal component analysis (PCA) showed that Anadara granosa species was positively correlated with TSS r = 0.890, Dosinia contusa, Anomalocardia squamosa, Mererix meretrix, Placamen isabellina, and Tellinella spengleri were positively correlated with currents r = 0.933.

KEPUASAN KONSUMEN DITINJAU DARI KUALITAS PELAYANAN, STORE ATMOSPHERE DAN PROMOSI DI RUMAH MAKAN PONDOK JOWI SOLO

2020 ◽  
Vol 4 (02) ◽  
Author(s):  
Shofia Zulfa Amalina ◽  
Sri Hartono ◽  
Ratna Damayanti
Keyword(s):  
Quality Of Service ◽  
Data Collection ◽  
Customer Satisfaction ◽  
Service Quality ◽  
Consumer Satisfaction ◽  
Sampling Technique ◽  
Likert Scale ◽  
The Relationship

The purpose of this study was to analyze the effect of whether or not the quality of service, store atmosphere and promotion of consumer satisfaction at Pondok Jowi Restaurant Solo. The population in this study were consumers of Pondok Jowi Solo Restaurant in January 2020 at May 2020 with a total of 14,030 people. The sampling techniquemismpurposive samplingm which is a sampling technique with certain considerations by taking 100 respondents. Data collection uses a Likert scale questionnaire to measure respondents' answers to identify the relationship between service quality, store atmosphere and promotion of customer satisfaction. The results show that service quality, store atmosphere and promotion have a simultaneous and significant effect on customer satisfaction, servicei quality has assignificant effect on customer satisfaction, store atmosphere has a significant effect on customer satisfaction, and promotion has significant effect on customer satisfaction. Keywords: Service quality, Store atmosphere, Promotion, Consumer satisfaction

Quality evaluation of tugaksheeree samples by ATR-FTIR spectroscopy using multicomponent analysis

2020 ◽  
Vol 10 ◽  
Author(s):  
Nikunj D. Patel ◽  
Niranjan S. Kanaki
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Quality Evaluation ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Attenuated Total Reflectance ◽  
Chemometric Methods ◽  
Total Reflectance ◽  
Fingerprint Region ◽  
Ftir Technique

Background: Numerous Ayurvedic formulations contains tugaksheeree as key ingredient. Tugaksheereeis the starch gained from the rhizomes of two plants, Curcuma angustifoliaRoxb. (Zingiberaceae) and Marantaarundinacea (MA) Linn. (Marantaceae). Objective: The primary concerns in quality assessment of Tugaksheeree occur due to adulteration or substitution. Method: In current study, Fourier transform infrared (FTIR) technique with attenuated total reflectance (ATR) facility was used to evaluate tugaksheeree samples. Total 10 different samples were studied and transmittance mode was kept to record the spectra devoid of pellets of KBR. Further treatment was given with multi component tools by considering fingerprint region of the spectra. Multivariate analysis was performed by various chemometric methods. Result: Multi component methods like Principal Component Analysis (PCA), and Hierarchical Cluster Analysis (HCA)were used to discriminate the tugaksheeree samples using Minitab software. Conclusion: This method can be used as a tool to differentiate samples of tugaksheeree from its adulterants and substitutes.

scholarly journals Nonverbal Semantics Test (NVST)—A Novel Diagnostic Tool to Assess Semantic Processing Deficits: Application to Persons with Aphasia after Cerebrovascular Accident

2021 ◽  
Vol 11 (3) ◽  
pp. 359
Author(s):  
Katharina Hogrefe ◽  
Georg Goldenberg ◽  
Ralf Glindemann ◽  
Madleen Klonowski ◽  
Wolfram Ziegler
Keyword(s):  
Language Processing ◽  
Cerebrovascular Accident ◽  
Semantic Processing ◽  
Factor Model ◽  
Principal Component ◽  
Original Data ◽  
Verbal Abilities ◽  
Verbal Tasks ◽  
Alternative Means ◽  
The Relationship

Assessment of semantic processing capacities often relies on verbal tasks which are, however, sensitive to impairments at several language processing levels. Especially for persons with aphasia there is a strong need for a tool that measures semantic processing skills independent of verbal abilities. Furthermore, in order to assess a patient’s potential for using alternative means of communication in cases of severe aphasia, semantic processing should be assessed in different nonverbal conditions. The Nonverbal Semantics Test (NVST) is a tool that captures semantic processing capacities through three tasks—Semantic Sorting, Drawing, and Pantomime. The main aim of the current study was to investigate the relationship between the NVST and measures of standard neurolinguistic assessment. Fifty-one persons with aphasia caused by left hemisphere brain damage were administered the NVST as well as the Aachen Aphasia Test (AAT). A principal component analysis (PCA) was conducted across all AAT and NVST subtests. The analysis resulted in a two-factor model that captured 69% of the variance of the original data, with all linguistic tasks loading high on one factor and the NVST subtests loading high on the other. These findings suggest that nonverbal tasks assessing semantic processing capacities should be administered alongside standard neurolinguistic aphasia tests.

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