Acta Periodica Technologica

In this paper, the nutritional quality of cheese samples and cheese analogues was assessed throughout the fatty acid profile and lipid indices. The research included cheese analogues in which milk fat was completely replaced by vegetable fat with the addition of palm and coconut oil, as well as mixed cheese analogues products, whose production was based on the use of palm oil, milk protein and cheese. Fatty acid profile was analysed by gas chromatography-mass spectrometry (GC-MS), while the atherogenic index, thrombogenic index and hypocholesterolemic/hypercholesterolemic ratio were calculated for the estimation of the lipid quality of the analysed samples. GC-MS analysis revealed the presence of 29 fatty acids in the analysed samples, among which dominated palmitic, stearic, oleic and linoleic fatty acid. Samples of cheese analogues showed improved fatty acid composition with a decreased content of saturated fatty acids and increased content of unsaturated fatty acids (monounsaturated and ω6 fatty acids). Values of atherogenic, thrombogenic indices and hypocholesterolemic/ hypercholesterolemic ratio (AI, TI and H/H) in the analysed samples varied in the range 0.81-11.89, 1.64-5.22 and 0.14-1.31, respectively. Lower AI and TI values accompanied by higher H/H values were observed for cheese analogues obtained by partial or complete substitution of milk fat with palm oil. Cheese analogue, in which production coconut oil completely replaced milk fat, demonstrated unfavourable fatty acid content and accompanying lipid indices, indicating the low nutritional quality of the specific sample.

Ana Djurovic

Snezana Kravic

Zorica Stojanovic

Mirela Ilicic

Katarina Kanuric

Dajana Vukic

Vladimir Vukic

Jovana Degenek

Katarina Curic

Acta periodica technologica

Assessment of nutritional quality of cheeses and cheese analogues on the market of the Republic of Serbia

塞尔维亚共和国市场上奶酪及其替代品的营养质量评估

Energy plays an important role in rice processing whereby the amount of energy consumed could influence the cost of production. Therefore, this study aimed to evaluate the energy consumption and milling quality of three rice varieties (FARO 15, FARO 60 and FARO 62) using a dual-powered rice parboiler. The energy consumption patterns viz steeping energy consumption, steaming energy consumption, total energy consumption and energy intensity of the rice varieties using electricity and Liquefied Petroleum Gas (LPG) combustion as the power source of the parboiler were determined using standard equations. The milling quality in terms of milling recovery and head milled rice were also determined using standard procedures. The energy consumption during steeping and steaming ranged from 39.02 MJ to 40.00 MJ and 12.90 MJ to 14.09 MJ, respectively. The total energy consumption and energy intensity ranged from 31.62 MJ to 32.01 MJ and 7.90 MJ/kg to 8.00 MJ/kg, respectively. The milling recovery and the head milled rice of the rice varieties ranged from 64.23% to 66.76%, and 55.45% to 59.18%, respectively. The total energy consumption and energy intensity of the rice varieties differ based on the power source of the rice parboiler. The power source also influenced the milling recovery and head milled rice of the rice varieties. The use of gas as a power source for the rice parboiler consumed more energy than electricity. The information provided in this study would guide energy conservation, prevention of production downtime and improving rice milling quality.

Mayowa Sanusi

Musliu Sunmonu

Sodiq Olaleye

Ifeoluwa Adedeji

Harris Adeniyi

Adebayo Eniola

Rice parboiling using a dual-powered parboiler: Evaluation of energy consumption patterns and milling quality

双动力蒸煮器用于稻米蒸煮：能耗模式与碾磨质量评估

Plants and plant products, including essential oils, are globally recognized for their medicinal and therapeutic values. Various methods have been used to obtain essential oils efficient isolation from the plant material. In this research, vacuum hydrodistillation (VHD) was used to isolate oil from juniper berry (Juniperus communis L). Using GC-MS analysis, the chemical composition of the obtained oil was examined, which was compared with commercial ones. In the composition of VHD essential oil monoterpene fraction was dominant, with a significant percent of the sesquiterpene fraction, while the ?-pinene was the most abundant compound (21.7%). The analysis of the biological and pharmacological potential revealed that the oil obtained by VHD was a better antioxidant agent then commercial oil when it comes to scavenger activity against the ABTS radical (VHD oil 77.23 mg TE/g; commercial oil 8.31 mg TE/g) and reduction potential according to Cu2+ ion (VHD oil 107.13 mg TE/g). On the other hand, the enzyme inhibitory potential resulted in a stronger ability of the commercial oil to reduce excessive enzyme activity. The conducted research indicates that J. communis oil has shown significant biopotential and its use in food production and as a source of potent herbal medicines should be considered.

Jelena Bajac

Milena Terzic

Gökhan Zengin

Igor Antic

Branislava Nikolovski

Marija Radojkovic

Application of the vacuum distillation in isolation of juniper berry (Juniperus communis L.) essential oil

真空蒸馏在杜松果（Juniperus communis L.）精油分离中的应用

This research focuses on the decomposition temperature of a large sheep horn from Haveri District, Karnataka, India, which is 302.9?C. It also demonstrates the possible use of large sheep horn in the aerospace industry. It can be utilised as a Thermal Barrier Coating (TBC) in high-pressure compressor blades of jet engines. Because of its poor thermal conductivity and specific heat capacity, it is a superb insulator, and temperatures throughout the TBC take around 10 minutes to match.

Vijet Angadi

Arun Patil

Shridhar Mathad

Mallikarjunagouda Patil

Thermal studies of big sheep horn as thermal barrier coating (TBC) material for gas turbine compressor blade

大型羊角作为燃气轮机压缩机叶片热障涂层材料的热学研究

In the present paper, the chemometric analysis, ranking and selection of the most suitable in silico lipophilicity parameters of eight alkyl and cycloalkyl s-triazine derivatives were carried out. The lipophilicity parameters were calculated using various computational approaches and computer programs. The conducted analysis is the basis for further studies aimed to define, compare and examine the influence of alkyl and cycloalkyl substituents, introduced in 6-chloro-1,3,5-triazine-2,4-diamine structure, on molecular lipophilicity and bioactivity. The chemometric methods used in the study are pattern recognition methods, such as hierarchical cluster analysis (HCA) and sum of ranking differences (SRD). The obtained ranking results indicate that the following in silico lipophilicity descriptors can be chosen as the most suitable for interpretation of lipophilicity of the studied series of s-triazine derivatives: AlogP, MlogP, WLOGP, logPKLOP and logPPHYS. The lipophilicity descriptor iLOGP was marked as the least suitable lipophilicity descriptor of the studied series of compounds. The ranking results were validated by 7-fold cross-validation approach and by comparison of ranks by random numbers (CRRN).

Benjamin Salakovic

Strahinja Kovacevic

Milica Karadzic-Banjac

Lidija Jevric

Sanja Podunavac-Kuzmanovic

Dusan Antonovic

Comparative chemometric analysis, ranking and selection of lipophilicity parameters of 6-chloro-1,3,5-triazine derivatives with acyclic and cyclic substituents

6-氯-1,3,5-三嗪衍生物与无环和环状取代基的亲脂性参数的比较化学计量学分析、排序和选择

This study aimed to develop a single quality index of Serbian (IS) and Mongolian (IM) Chaga (Inonotus obliquus) extracts obtained by different types of extraction. Microwave-assisted extraction (MW), ultrasonic-assisted extraction (VAE), and supercritical water extraction (SWE) were used to prepare the extracts. Seven quality parameters of a mushroom extract were considered, including the free radical scavenging capability determined by the 1,1-diphenyl-2-picrylhydrazyl (DPPH?) and 2,2'-azino-bis (3- ethylbenzothiazoline-6-sulfonic acid) (ABTS?+) assays, the ability to chelate ferrous ions (Fe2+), as well as the total amount of phenolic compounds, proteins, polysaccharides, and glucans. The mentioned parameters were used to define the total quality index (TQI). Based on TQI scores SWE can be recommended as the most effective type of extraction (favors the yield) of total phenolic compounds (TPC), total extracted proteins (TEP), total polysaccharides (TPS), total glucans (TG), and antioxidant assays. Finally, TQI results for seven quality parameters, derived from six Chaga samples using SWE at 200?C, showed the best overall quality for both the IS and IM extracts.

Vesna Lazic

Ana Doroski

Ilija Djekic

Jovana Vunduk

Maja Kozarski

Anita Klaus

Total quality index approach applied to Chaga extracts obtained by green extraction techniques

应用绿色提取技术获得的桦树茸提取物的总质量指数方法

Oilseeds such as camelina and rapeseed are cultivated primarily for their high-quality oil. The oil de-rived from both crops is characterized by a high content of unsaturated fatty acids, tocopherols, phenols, and vitamin E. The camelina and rapeseed oils are applied in various branches of industry including food, pharmaceutical, chemical, and for obtaining biofuels. These oilseeds synthesize a significant amount of protein. These oilseeds play a major role in addressing the growing issue of protein deficit in the diets of people worldwide because of their high protein content. Efforts in breeding are essential to develop genotypes with high yield and protein content, while also maintaining high oil content and ensuring adaptability to climatic changes. During 2022/2023, various genotypes of rapeseed and camelina were grown in the experimental fields of the Institute of Field and Vegetable Crops Novi Sad in order to select varieties with ideal attributes. Among these, genotype NS Svetlana exhibited the highest oil content of 44.85 %, whereas genotype NS Dunav demonstrated the highest protein content of 24%. While camelina generally presented lower oil content compared to rapeseed, Genotype III stood out with a maximum oil content of 37.82%. Camelina also displayed significantly higher protein content than rapeseed. Protein content in camelina reached 26.59% in the case of Genotype I.

Nada Grahovac

Milica Aleksic

Zeljko Milovac

Slavko Vasin

Vladimir Miklic

Ana Marjanovic-Jeromela

Exploring high-yield oilseeds: A study of rapeseed and camelina varieties as valuable sources of oil and protein

探索高产油料作物：油菜和亚麻荠品种作为宝贵油脂和蛋白质来源的研究

Bisphenol A (BPA) is one of the chemical compounds used in the industry. The ongoing accumulation of this organic compound has a significant and harmful impact on the environment and human health. This study has several objectives, including the reduction of waste rates, the development of a less inexpensive adsorbent material than commercial activated carbon, and the purification of polluted water. The choice of waste used is based on its abundance and availability. To this end, pomegranate peel was selected as a precursor for the preparation of activated carbon using H3PO4 at different temperatures was carried out. The characterization of the best adsorbent by SEM, TGA/DTA, XRF, FTIR, and XRD depicted that AC500 has a heterogeneous surface with a higher carbon percent (93%), the disappearance of several organic functions, giving way to C-C bonds, and an amorphous structure. The rates of moisture and ash are 2.69% and 3.9%, respectively. The values of the iodine and methylene blue numbers are 842.45 mg?g-1, and 476.23 mg?g-1, respectively, indicating the microporous and mesoporous structure of AC500, which confirms the SEM results. The acidic character of AC500 has been proven by PZC (5.1), zetametry, and Boehm titration. This new structure imparts it with an adsorption capacity exceeding 91% for the removal of BPA. The obtained results suggest that pomegranate peel holds promising potential as a sustainable resource, offering a hopeful perspective for environmental pollution remediation.

Rihab Boussaid

Goussem Mimanne

Hayat Mokdad

Karim Benhabib

Mohamed Bezzina

Physicochemical characterization of a pomegranate peel-based new adsorbent generation used in bisphenol a elimination

基于石榴皮的新型吸附剂的物理化学表征及其在双酚A去除中的应用

One of the most important stages in the creation of a number of spirits is aging. The aim of the work is to study the effect of discrete-pulse energy input on the physicochemical parameters of oak extracts. It was determined that it is most effective to process oak chips in a rotor-pulsation apparatus with a flow shear rate of 50? 103 s-1 and a duration of 11 hours and an extractant strength of 60% by volume. An increase in the extraction temperature from 25 to 40?? contributes to an increase in the optical density of solutions from 0.64 to 0.78 units, while energy consumption does not increase. It was determined that when the solid/liquid ratio decreases from 1:10 to 1:20, the content of tannins in the extract decreases almost twice. The dependence of the change in the average surface diameter of oak particles on the processing duration in the rotor-pulsation apparatus was determined at a flow shear rate of 50? 103 s-1, a solid/liquid ratio of 1:10, a temperature of 40??, and an ethanol concentration of 60% vol. The most intensive dispersion took place in the first two hours. The particle size decreased by more than 2000 ?m. After 4 hours of processing, the reduction was 150 ?m, and after 6 hours - 100 ?m. Further processing from 6 to 12 hours led to a decrease in the size of the particles by 50 ?m. The maximum concentration of tannins was 7.4 g/L with an average particle size of 400 ?m, which corresponds to 10-12 hours of processing.

Oleksandr Obodovych

Vitalii Sydorenko

Bogdan Tselen

Effect of mechanisms of discrete-pulse energy input on the physico-chemical indicators of oak extracts

离散脉冲能量输入机制对橡木提取物物理化学指标的影响

Confectionery industry wastewater contains substantial amounts of organic and inorganic matter, posing a significant environmental burden. Microbial bioconversion offers a promising solution by utilizing these nutrients to produce value-added products, such as microbial biocontrol agents. Bacillus spp. in combination with essential oils, are particularly promising for fungicidal applications. The aim of this study was to investigate the potential of confectionery industry wastewater as a medium for producing the Bacillus sp. BioSol021-based biocontrol agent and to assess the effects of incorporating essential oils into the cultivation medium on bacterial growth and antimicrobial activity against the aflatoxigenic fungal pathogen Aspergillus flavus. Biomass content of Bacillus sp. BioSol021 was measured using the plate count method, while antifungal activity was evaluated using the well-diffusion method. The biomass content of Bacillus sp. BioSol021 during cultivation suggests the potential for utilizing this waste as suitable substrate for microbial growth, as no inhibition was observed. However, the addition of essential nutrients' sources could be considered to enhance bio-mass proliferation. The applied essential oils did not inhibit bacterial growth; rather, thyme and fennel oils increased biomass content compared to medium without essential oils. The highest antimicrobial activity against Aspergillus flavus was observed using oregano oil, followed by basil oil, with maximum activity at 72 hours of cultivation, which also corresponded with the highest biomass content. Future research should focus on further investigating wastewater seasonal characteristics, optimizing bioprocess parameters, and exploring the specific mechanisms of biocontrol action of both the Bacillus isolate and essential oils, as well as their interactions.

Tatjana Dujkovic

Ivana Danilov

Vanja Vlajkov

Nevena Gladikostic

Selena Dmitrovic

Natasa Lukic

Aleksandar Jokic

Jovana Grahovac

Investigation of microbial biocontrol agents and essential oils synergism in suppression of Aflatoxigenic Aspergillus flavus

微生物生物防治剂与精油协同抑制黄曲霉菌的调查研究

ISSN	1450-7188, 2406-095X
h-index	21

涉及主题	化学生物有机化学生物化学食品科学物理材料科学工程类色谱法医学量子力学复合材料遗传学植物地质学生态学热力学冶金数学园艺化学工程
出版信息	出版商: University of Novi Sad, Faculty of Technology，出版周期: ，期刊类型: journal，开源期刊: 是
基本数据	创刊年份: 2010，原创研究文献占比: 0.00%，自引率:N.A.， Gold OA占比: 0.00%
平均审稿周期	8 weeks

Acta Periodica Technologica

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