scholarly journals A Review of Wine Authentication Using Spectroscopic Approaches in Combination with Chemometrics

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4334
Author(s):  
Ranaweera K. R. Ranaweera ◽  
Dimitra L. Capone ◽  
Susan E. P. Bastian ◽  
Daniel Cozzolino ◽  
David W. Jeffery

In a global context where trading of wines involves considerable economic value, the requirement to guarantee wine authenticity can never be underestimated. With the ever-increasing advancements in analytical platforms, research into spectroscopic methods is thriving as they offer a powerful tool for rapid wine authentication. In particular, spectroscopic techniques have been identified as a user-friendly and economical alternative to traditional analyses involving more complex instrumentation that may not readily be deployable in an industry setting. Chemometrics plays an indispensable role in the interpretation and modelling of spectral data and is frequently used in conjunction with spectroscopy for sample classification. Considering the variety of available techniques under the banner of spectroscopy, this review aims to provide an update on the most popular spectroscopic approaches and chemometric data analysis procedures that are applicable to wine authentication.

2019 ◽  
Author(s):  
Rumen Manolov

The lack of consensus regarding the most appropriate analytical techniques for single-case experimental designs data requires justifying the choice of any specific analytical option. The current text mentions some of the arguments, provided by methodologists and statisticians, in favor of several analytical techniques. Additionally, a small-scale literature review is performed in order to explore if and how applied researchers justify the analytical choices that they make. The review suggests that certain practices are not sufficiently explained. In order to improve the reporting regarding the data analytical decisions, it is proposed to choose and justify the data analytical approach prior to gathering the data. As a possible justification for data analysis plan, we propose using as a basis the expected the data pattern (specifically, the expectation about an improving baseline trend and about the immediate or progressive nature of the intervention effect). Although there are multiple alternatives for single-case data analysis, the current text focuses on visual analysis and multilevel models and illustrates an application of these analytical options with real data. User-friendly software is also developed.


Proceedings ◽  
2020 ◽  
Vol 62 (1) ◽  
pp. 9
Author(s):  
Oriol Vallcorba ◽  
Jordi Rius

The d1Dplot and d2Dplot computer programs have been developed as user-friendly tools for the inspection and processing of 1D and 2D X-ray diffraction (XRD) data, respectively. d1Dplot provides general tools for data processing and includes the ability to generate comprehensive 2D plots of multiple patterns to easily follow transformation processes. d2Dplot is a full package for 2D XRD data. Besides general processing tools, it includes specific data analysis routines for the application of the through-the-substrate methodology [Rius et al. IUCrJ 2015, 2, 452–463]. Both programs allow the creation of a user compound database for the identification of crystalline phases. The software can be downloaded from the ALBA Synchrotron Light Source website and can be used free of charge for non-commercial and academic purposes.


2011 ◽  
Vol 76 (9) ◽  
pp. 1133-1139 ◽  
Author(s):  
Pham Thi Nhat Trinh ◽  
Nguyen Cong Hao ◽  
Phan Thanh Thao ◽  
Le Tien Dung

From the ethanol extract of Drynaria fortunei (KUNZE) J. Sm., a new phenylpropanoid glycoside, fortunamide (1), was isolated and characterized by spectroscopic methods. Together with a new glycoside, 9 known compounds, including three curcuminoids (2–4), two isoprenylated flavonoids (5, 6), two flavonoids (7, 8), one monoterpenoid (9) and one phenolic acid (10) were isolated and identified by spectral data analysis from the rhizomes of Drynaria fortunei (KUNZE) J. Sm. Eight of them were isolated from Drynaria fortunei (KUNZE) J. Sm. for the first time.


Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3243 ◽  
Author(s):  
Michał Szmatoła ◽  
Justyna Chrobak ◽  
Rafał Grabowski ◽  
Jolanta Iłowska ◽  
Julia Woch ◽  
...  

Raw vegetable oil from Crambe abyssinica was subjected to oxidative treatment to enhance its viscosity. The oxidation processes were carried out in the presence of N-hydroxyphthalimide with or without supercritical CO2 as a solvent. Four spectroscopic techniques (Raman, UV-VIS, FT-IR, NMR) were applied to assess the chemical changes taking place during the oxidation. Raman and NMR spectroscopy proved best in the assessment of the chemical transformations leading to increased viscosity of the modified vegetable oil.


Author(s):  
Syaiful Amin ◽  
Suwito Eko Pramono ◽  
Atno ◽  
Ganda Febri Kurniawan

Kota Lama Semarang, also known as Semarang Old Town in Central of Java Province, Indonesia, has the potential to become an inclusive and sustainable tourism destination, in accordance with the Indonesian government’s development plan. However, its potential has not been promoted publicly in the best ways. The aim of this research is to describe and develop a model for promoting inclusive and sustainable tourism in the area. The research applies qualitative methods and takes a descriptive approach. The data were collected using observation and interviews, while data analysis was performed using Creswell's descriptive qualitative analysis. The Sejarah di Dekatku (History Near Us) application (the new model), together with social media promotion, provides an alternative way of promoting tourism. During a trial launch, the application was appreciated by the tourists who used it. The application is considered easy to use and suitable for the needs of the community. It features themes of inclusivity and education, and it is considered important for the promotion of historical areas of Semarang. The advantages of using the application to help develop Kota Lama Semarang tourism are that it is easy to use and navigate, it has attractive features, and it provides easy-to-understand information. Our research suggests that the application should be launched immediately and used as a way of promoting the area. In addition, features and interfaces should be developed further to make the application even more attractive and user-friendly. This can be done by researching and developing the features and the interface of the application to make it more attractive and user-friendly.


2018 ◽  
Author(s):  
Leandro Gabriel Roser ◽  
Fernán Agüero ◽  
Daniel Oscar Sánchez

AbstractBackgroundExploration and processing of FASTQ files are the first steps in state-of-the-art data analysis workflows of Next Generation Sequencing (NGS) platforms. The large amount of data generated by these technologies has put a challenge in terms of rapid analysis and visualization of sequencing information. Recent integration of the R data analysis platform with web visual frameworks has stimulated the development of user-friendly, powerful, and dynamic NGS data analysis applications.ResultsThis paper presents FastqCleaner, a Bioconductor visual application for both quality-control (QC) and pre-processing of FASTQ files. The interface shows diagnostic information for the input and output data and allows to select a series of filtering and trimming operations in an interactive framework. FastqCleaner combines the technology of Bioconductor for NGS data analysis with the data visualization advantages of a web environment.ConclusionsFastqCleaner is an user-friendly, offline-capable tool that enables access to advanced Bioconductor infrastructure. The novel concept of a Bioconductor interactive application that can be used without the need for programming skills, makes FastqCleaner a valuable resource for NGS data analysis.


Author(s):  
Pamela A. Lemoine ◽  
P. Thomas Hackett ◽  
Michael D. Richardson

Intellectual Property (IP) has long been an issue of debate among higher education institutions in the United States and other countries. However, determining ownership and the income dispersion of creative works is still a relatively new phenomenon which compounds delivery of education in a virtual world that knows no boundaries. Intellectual Property (IP) issues are numerous and often complex in higher education because colleges and universities are major suppliers and consumers of online learning, particularly in a global context. Many higher education institutions claim ownership of the materials created by faculty for online courses, and often the courses themselves; many more are plagiarized or used without the author's permission as a result of teaching in an online environment. In addition, global copyright laws are very unclear regarding the ownership of works created in an electronic environment. In the past, instructors created materials have been considered the intellectual property of the creator. The potential economic value of multimedia and online course materials has raised the stakes for higher education institutions and prompted them to critically examine how online learning has opened old wounds regarding the ownership of intellectual property.


2011 ◽  
Vol 24 (3) ◽  
pp. 45-60
Author(s):  
Ben Ali ◽  
Samar Mouakket

E-business domains have been considered killer domains for different data analysis techniques. Most researchers have examined data mining (DM) techniques to analyze the databases behind E-business websites. DM has shown interesting results, but this technique presents some restrictions concerning the content of the database and the level of expertise of the users interpreting the results. In this paper, the authors show that successful and more sophisticated results can be obtained using other analysis techniques, such as Online Analytical Processing (OLAP) and Spatial OLAP (SOLAP). Thus, the authors propose a framework that fuses or integrates OLAP with SOLAP techniques in an E-business domain to perform easier and more user-friendly data analysis (non-spatial and spatial) and improve decision making. In addition, the authors apply the framework to an E-business website related to online job seekers in the United Arab Emirates (UAE). The results can be used effectively by decision makers to make crucial decisions in the job market of the UAE.


2020 ◽  
Vol 93 ◽  
pp. 101557 ◽  
Author(s):  
David Medina-Ortiz ◽  
Sebastián Contreras ◽  
Cristofer Quiroz ◽  
Juan A. Asenjo ◽  
Álvaro Olivera-Nappa

2018 ◽  
Vol 47 ◽  
pp. 02004
Author(s):  
Tri Heru Prihadi ◽  
Rasidi ◽  
Idil Ardi ◽  
Ani Widiyati ◽  
Dwi Budi Wiyanto

Nusa Penida island is one of center for seaweed culture in Bali province. Seaweed that cultured is Euchema spinosum and Euchema cottoni spread around coastal. There also found wild seaweed, such as Ulva sp and Gracillaria sp. Abalone (H. squamata) is one of kind Mollusca which high economic value, but abalone cultured is not yet develop in Nusa Penida island, although this island have high potency for developing abalone culture. Abalone culture needs seaweeds as a diet. The abundance of seaweeds as abalon diet is important for developing abalon culture in Nusa Penida Island in the future. The aim of this research was to asses the potency of seaweeds as diet for developing abalone culture in Nusa Penida island. Research was done in Batununggul village, Nusa Penida Island. Experimental design was used Completely Randomized Design (CRD) with 3 treatments and 3 replications. The treatments were used different seaweeds as diet for abalone culture: (DG=Diet Gracillaria sp, DS=Diet Spinosum sp. and DU=Diet Ulva sp.). Abalon were cultured for 4 months by feeding the diet at satiation. Data analysis was used analysis varian (Anova) with SPSS. 16. The result showed abalon fed with Gracillaria sp (DG) at 4.73 g was the highest growth by 4.73 g, followed DU by 3.93 g and DS by 3.43 g. Meanwhile the abalon shell length fed with Gracillaria sp (DG) was the highest growth by 6.55 mm, followed DU by 5.97 mm and DS by 5.60 mm. Based on variant analysis showed growth performance (length shell and weight) abalon, all treatments were not significantly different (P>0.05). The conclusion this research, the three species of seaweed can be used as diet for abalone culture. These seaweeds have same potency as diet for developing abalone culture in Nusa Penida Island


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