Mihaela Mihai

Dr. Mihaela Mihai

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 November 2019 in Polymers
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Journal Article
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Martau Gheorghe AdrianMartau Gheorghe Adrian
Martau Gheorghe Adrian
MMMihaela Mihai
Mihaela Mihai
Dan Cristian VodnarDan Cristian Vodnar
Dan Cristian Vodnar
Nowadays, biopolymers as intelligent and active biopolymer systems in the food and pharmaceutical industry are of considerable interest in their use. With this association in view, biopolymers such as chitosan, alginate, pectin, cellulose, agarose, guar gum, agar, carrageenan, gelatin, dextran, xanthan, and other polymers have received significant attention in recent years due to their abundance and natural availability. Furthermore, their versatile properties such as non-toxicity, biocompatibility, biodegradability, and flexibility offer significant functionalities with multifunctional applications. The purpose of this review is to summarize the most compatible biopolymers such as chitosan, alginate, and pectin, which are used for application in food, biotechnological processes, and biomedical applications. Therefore, chitosan, alginate, and pectin are biopolymers (used in the food industry as a stabilizing, thickening, capsular agent, and packaging) with great potential for future developments. Moreover, this review highlights their characteristics, with a particular focus on their potential for biocompatibility, biodegradability, bioadhesiveness, and their limitations on certain factors in the human gastrointestinal tract.

11 April 2022 in Sustainability
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Journal Article
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MMMihaela Mihai
Mihaela Mihai
CACarmen N. Albert
Carmen N. Albert
VMValentin Constantin Mihai
Valentin Constantin Mihai
Diana E. DumitrasDiana E. Dumitras
Diana E. Dumitras
The COVID-19 pandemic has led to perspective shifts in the approach of English language classrooms in the online higher education context. The current empirical study aims to understand the behaviour of 394 university students enrolled in agricultural, veterinary, and overall life science programmes in one of the main Romanian universities while learning English as a Foreign Language (EFL) and English for Specific Purposes (ESP) in terms of their classroom engagement during the 2020–2021 academic year. Following the application of an online questionnaire, a principal component analysis (PCA) was undertaken to determine the factors that determine students’ engagement (predominantly emotional and social), while learning EFL and ESP in the online system during the COVID-19 pandemic. Furthermore, the PCA results were used to identify clusters of students expressing similar behaviours towards the English learning process. Two clusters were identified: Cluster 1 consisted of moderately engaged students, and Cluster 2 consisted of highly engaged students. The clusters differed by the anxiety students express during class, the perception of the online system, the level of involvement and enjoyment, as well as class environment and dynamics, with the second cluster being the only one revealing a difference between the face-to-face and online experience. This study on students’ behaviours, attitudes, and preferences places students in the centre of the process of foreign language teaching and learning, as their enjoyment and engagement lead to a less stressful environment, especially during challenging times, and ultimately to long-term language proficiency and sustainable educational development.

30 March 2022 in Antioxidants
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Bianca-Eugenia ȘtefănescuBianca-Eugenia Ștefănescu
Bianca-Eugenia Ștefănescu
Silvia Amalia NemesSilvia Amalia Nemes
Silvia Amalia Nemes
Teleky BernadetteTeleky Bernadette
Teleky Bernadette
Lavinia Florina CalinoiuLavinia Florina Calinoiu
Lavinia Florina Calinoiu
Laura MitreaLaura Mitrea
Laura Mitrea
Crisan Gianina CristinaCrisan Gianina Cristina
Crisan Gianina Cristina
In recent years, Vaccinium spp. (bilberry-VMT, lingonberry-VVIT, and blueberry-VCS) have sparked particular interest for their prospective health benefits. The latest investigations have place them as important alternative sources of nutraceuticals as their leaves are the main by-products of berry harvesting. The present study is aimed at investigating the bioaccessibility of phenolic compounds from leaves of the Vaccinium species, both as microencapsulated powder and aqueous extracts, following exposure to in vitro simulated digestion. Moreover, the impact of maltodextrin and glucose microencapsulation carriers on the extracts’ phenolic content was assessed. Prior to encapsulation, the viscosity of the emulsions was shown at a shear stress of 50 s−1 dilatant and a Newtonian behaviour above this value with a final viscosity between 1.024 and 1.049 mPa·s. The final microencapsulation yield for the samples ranged between 79 and 81%. Although the microencapsulated forms presented a targeted release at the intestinal level, the phenolic content decreased after gastrointestinal digestion. The bioaccessibility of the microencapsulated extracts showed higher values than their non-encapsulated counterparts, with the highest value of 45.43% in the VVIT sample, followed by VCS with 41.07%. However, the non-encapsulated VCS sample presented high bioaccessibility after in vitro digestion (38.65%). As concluded, further in vivo research should be conducted on the leaves of the Vaccinium species.

23 December 2022 in Plants
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Diaconeasa ZoritaDiaconeasa Zorita
Diaconeasa Zorita
CICristian-Ioan Iuhas
Cristian-Ioan Iuhas
HAHuseyin Ayvaz
Huseyin Ayvaz
Mustafa MortasMustafa Mortas
Mustafa Mortas
Farcas Anca CorinaFarcas Anca Corina
Farcas Anca Corina
Andreea StanilaAndreea Stanila
Andreea Stanila
Drastic growth in the amount of global food waste produced is observed every year, not only due to incessant population growth but also economic growth, lifestyle, and diet changes. As a result of their increasing health awareness, people are focusing more on healthy diets rich in fruits and vegetables. Thus, following worldwide fruit and vegetable consumption and their processing in various industries (juice, jams, wines, preserves), significant quantities of agro-industrial waste are produced (pomace, peels, seeds) that still contain high concentrations of bioactive compounds. Among bioactive compounds, anthocyanins have an important place, with their multiple beneficial effects on health; therefore, their extraction and recovery from food waste have become a topic of interest in recent years. Accordingly, this review aims to summarize the primary sources of anthocyanins from food waste and the novel eco-friendly extraction methods, such as pulsed electric field extraction, enzyme-assisted extraction, supercritical fluid extraction, pressurized liquid extraction, microwave-assisted extraction, and ultrasonic-assisted extraction. The advantages and disadvantages of these techniques will also be covered to encourage future studies and opportunities focusing on improving these extraction techniques.

3 August 2021 in Sustainability
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RCRoxana Larisa Cadar
Roxana Larisa Cadar
AAAntonio Amuza
Antonio Amuza
Diana E. DumitrasDiana E. Dumitras
Diana E. Dumitras
MMMihaela Mihai
Mihaela Mihai
Cristina Bianca PocolCristina Bianca Pocol
Cristina Bianca Pocol
The trend towards health and environmental protection has led to an increase in the consumption of medicinal and aromatic plant (MAP) products. The market for MAP products is influenced by consumer behaviour and therefore the aim of this study was to identify consumer segments that use MAP products for phytotherapeutic, cosmetic and personal care purposes according to their perceptions, attitudes and consumption habits and possible correlations between consumption of MAP products and interest in a healthy lifestyle and sustainable behaviour. Data collection was performed by administering a questionnaire to Cluj-Napoca residents. The final sample consisted of two groups of MAP consumers: the first with 231 respondents who use these products for phytotherapeutic purposes, the second group—with 297 respondents who use them as cosmetic and personal care products. The collected data were statistically analysed using the k-means clustering model, resulting in two distinct clusters in both consumer groups: cluster 1, the “Curious”, and Cluster 2, the “Knowledgeable”. For the consumers of the second cluster, consumption was positively correlated with healthcare and environmental protection, while they exhibited a growing interest in environmentally certified MAP products. The results obtained contribute to a better understanding of the MAP products consumption behaviour while tackling the practical implications for stakeholders in the pharmaceutical and cosmetics industry through the development and innovation of products tailored to consumer needs.

12 June 2022 in Sustainability
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CACarmen N. Albert
Carmen N. Albert
MMMihaela Mihai
Mihaela Mihai
IIIoana Mudure- Iacob
Ioana Mudure- Iacob
Twenty-first century learners live in a highly visual world, being constantly surrounded by visual, technologized stimuli and the educational system, be it general or specialized—as in the case of higher education—needs to creatively meet and answer these learning requirements. Among the plethora of new or updated approaches, the concept of Visual Thinking Strategies (VTS) designed by Philip Yenawine and Abigail Housen has gained extensive popularity due to its capacity of being adapted to a wide range of specialized fields with notable improvement results. The main purpose of the present review is to synthetically and critically present relevant scientific work related to the application of the VTS procedure and to further identify possible study areas that would highly benefit from the insertion of this procedure. Thus, the theoretical perspective is tackled from a cognitive-psychology standpoint, followed by a rendering of the research variety in applied VTS contexts pertaining to different study domains, as well as online VTS web clustering. These contexts have shown a predilection for VTS usage, which improves higher-education students’ specialized vocabulary and speaking skills in the same target language, but not in the case of ESP (English for specific purposes) classes.