scholarly journals Screening and selection of cultures based on techno-functional properties for ripening of cream

2019 ◽  
Vol 72 (3) ◽  
pp. 285-291
Author(s):  
Himanshu Gupta ◽  
Surajit Mandal ◽  
SK Tomar
LWT ◽  
2017 ◽  
Vol 81 ◽  
pp. 144-152 ◽  
Author(s):  
Maria Rosaria Corbo ◽  
Antonio Bevilacqua ◽  
Barbara Speranza ◽  
Mariangela Gallo ◽  
Daniela Campaniello ◽  
...  

2021 ◽  
Vol 1 (19) ◽  
pp. 271-273
Author(s):  
L.V. Perminova ◽  
M.B. Pykhtina ◽  
A.B. Beklemishev

Biocatalytic processes for the synthesis of valuable products, such as different esters for various purposes, have been studied using heterogeneous biocatalysts prepared by immobilizing the recombinant lipase rPichia/lip on mesoporous silica (SiO2) and macroporous carbon aerogel (MCA). It was found that the functional properties of immobilized lipase, such as enzymatic activity, specificity toward pair of substrates (acid and alcohol), the molecules of which differ in the number of carbon atoms (C), as well as operational stability, depended on the method of adsorptive immobilization, the chemical nature of the support, and polarity of the organic solvent, i.e. logP. The functional properties of rPichia/lip have been shown to be modulated by the selection of an organic solvent and support for lipase immobilization.


Author(s):  
Begül Bilgin ◽  
Lauren De Meyer ◽  
Sébastien Duval ◽  
Itamar Levi ◽  
François-Xavier Standaert

In this work, we perform an extensive investigation and construct a portfolio of S-boxes suitable for secure lightweight implementations, which aligns well with the ongoing NIST Lightweight Cryptography competition. In particular, we target good functional properties on the one hand and efficient implementations in terms of AND depth and AND gate complexity on the other. Moreover, we also consider the implementation of the inverse S-box and the possibility for it to share resources with the forward S-box. We take our exploration beyond the conventional small (and even) S-box sizes. Our investigation is twofold: (1) we note that implementations of existing S-boxes are not optimized for the criteria which define masking complexity (AND depth and AND gate complexity) and improve a tool published at FSE 2016 by Stoffelen in order to fill this gap. (2) We search for new S-box designs which take these implementation properties into account from the start. We perform a systematic search based on the properties of not only the S-box but also its inverse as well as an exploration of larger S-box sizes using length-doubling structures. The result of our investigation is not only a wide selection of very good S-boxes, but we also provide complete descriptions of their circuits, enabling their integration into future work.


1948 ◽  
Vol 15 (3) ◽  
pp. 398-408 ◽  
Author(s):  
Margery Hoyle ◽  
Agnes A. Nichols

1. Inhibitory strains of lactic streptococci have been encountered amongst strains of Str. cremoris isolated from starter and amongst strains of Str. lactis, isolated from sour milk, which had otherwise been regarded as suitable for cheesemaking.2. Methods are described for determining the concentration of inhibitory substance produced and the effect of these inhibitory strains on a wide selection of lactic streptococci.3. The significance of the presence of strains of lactic streptococci having inhibitory properties, if incorporated in starters, particularly when the strains are prepared separately and mixed in the vat, is discussed. Recommendations for the exclusion of inhibitory strains from such starter mixtures are made.


Author(s):  
D. I. Udavliev ◽  
◽  
A. M. Abdullaeva ◽  
S. S. Shikhov ◽  
N. E. Vanner ◽  
...  

The article provides information about the effectiveness of the drug is Effectisan in the laboratory. As a result of the conducted researches it is established that the tested preparation possesses a certain high antimicrobial activity. The drug (in vitro) is effective at concentrations from 0.2 to 1.0% against E. coli (pcs 1257), St. aureus (pcs 209-P), Mycobacterium B-5, Bac. cereus (pcs 96). With wet disinfection at a concentration of 0.5% and a consumption rate of 350 ml/m2, the drug has a pronounced disinfection activity against surfaces made of various materials, the quality control of disinfection in which is carried out by the presence or absence of growth in the washouts of test cultures E. coli, S. aureus. At a concentration of 2.0% and the rate of 350 ml/m2 Effectisan has a pronounced disinfectant activity during processing objects and for quality control of disinfection by selection of cultures of Mycobacterium tuberculosis (pcs-5).


2008 ◽  
Vol 9 (4) ◽  
pp. R69 ◽  
Author(s):  
Jinfeng Liu ◽  
Yan Zhang ◽  
Xingye Lei ◽  
Zemin Zhang

Author(s):  
Константин Александрович Мячин

Введение. Представлено лингвистическое исследование типовых свойств концепта memory и концептуальной категории memory. Устанавливается их терминологическое отношение. Приводится описание моделирования типового состава концепта memory в границах анализируемой категории. Цель исследования состоит в описании, моделировании и анализе авторского сознания в комплексе концептов, концептуальных категорий и смыслов, его репрезентирующих. В задачи исследования входит выявление состава содержания и типовых свойств концепта memory как компонента концептуальной категории memory. Материал и методы. Материалом послужили типовые высказывания на русском и английском языках, содержащие морфемы па/ом, мем, mem, а также ассоциаты слова memory/память. Исследование проводится в контексте коммуникативной и антропоцентрической парадигм. Методы исследования представлены концептуальным, психолингвистическим и лингвосемантическим анализом типовых высказываний на русском и английском языках, репрезентирующих состав концепта memory, а также типовые свойства концептуальной категории memory. Результаты и обсуждение. Смоделированы типовое содержание и психолингвистические свойства концепта memory в составе концептуальной категории memory. Вербальная (по корневым морфемам па/ом, мем, mem) и ассоциативная выборка типовых высказываний, репрезентирующих концепт memory, демонстрирует типовое содержание концепта и обозначает его функциональные свойства в составе концептуальной категории memory. Различные речевые варианты реализации концепта memory поддаются описанию как малые варианты репрезентации концепта. Реализация концепта в составе внутреннего содержания обозначения объектов культуры и искусства, а также в составе художественного нарратива создает большие варианты. Рассмотренные и наметившиеся типовые состав и свойства концепта memory позволяют изучать концептуальную категорию memory как одну из базовых категорий, задействованных в формировании сюжетной линии и смыслового содержания художественных произведений. Проведенный анализ показывает, что представляется возможным рассматривать художественное произведение как большой вариант реализации концептуальной категории memory. Introduction. This article presents a linguistic study of the typical properties of the concept memory, provides a detailed description of the concept memory and the conceptual category memory; establishes their terminological relationship. The content of the article provides a description of the modeling of typical components of the concept memory within the analyzed category. The purpose of the study. The purpose of the study is to describe, model and analyze author’s consciousness in a complex of concepts, conceptual categories and meanings that represent it. The objectives of the study include identifying the components of the concept and its typical properties functioning as a component of the conceptual category memory. Material and methods. The study is conducted in the context of a communicative and anthropocentric paradigms. The research methods are represented by conceptual, psycholinguistic and semantic analyses of typical utterances in Russian and English, representing the components of the concept memory, as well as typical properties of the conceptual category memory. The material is represented by typical utterances in Russian and English, containing morphemes “па/ом”, “мем” (in Russian), mem (in English), as well as associates of the word “память” / memory. Results and discussion. The tables and corresponding descriptions simulate the typical content and psycholinguistic properties of the concept memory as part of the conceptual category memory. The verbal (possessing root morphemes “па/ом”, “мем” (in Russian), mem (in English) and associative selection of typical utterances representing the concept memory shows typical content of the concept and denotes its functional properties as part of the conceptual category memory. Various speech variants implementing the concept memory are described as small variants representing the concept. The implementation of the concept as part of the internal content of the designation of objects of culture and art, as well as part of the literary narrative (books texts), creates big variants. The emerging typical components and properties of the concept memory makes it possible to consider the conceptual category memory as one of the basic categories involved in the formation of the storyline and the semantic content of literary narrative. The analysis shows that it is possible to consider a text of a literary work (a book) as a big variant of realization of the conceptual category memory.


2020 ◽  
Vol 6 (11) ◽  
Author(s):  
Fotis E. Psomopoulos ◽  
Jacques van Helden ◽  
Claudine Médigue ◽  
Anastasia Chasapi ◽  
Christos A. Ouzounis

As genome sequencing efforts are unveiling the genetic diversity of the biosphere with an unprecedented speed, there is a need to accurately describe the structural and functional properties of groups of extant species whose genomes have been sequenced, as well as their inferred ancestors, at any given taxonomic level of their phylogeny. Elaborate approaches for the reconstruction of ancestral states at the sequence level have been developed, subsequently augmented by methods based on gene content. While these approaches of sequence or gene-content reconstruction have been successfully deployed, there has been less progress on the explicit inference of functional properties of ancestral genomes, in terms of metabolic pathways and other cellular processes. Herein, we describe PathTrace, an efficient algorithm for parsimony-based reconstructions of the evolutionary history of individual metabolic pathways, pivotal representations of key functional modules of cellular function. The algorithm is implemented as a five-step process through which pathways are represented as fuzzy vectors, where each enzyme is associated with a taxonomic conservation value derived from the phylogenetic profile of its protein sequence. The method is evaluated with a selected benchmark set of pathways against collections of genome sequences from key data resources. By deploying a pangenome-driven approach for pathway sets, we demonstrate that the inferred patterns are largely insensitive to noise, as opposed to gene-content reconstruction methods. In addition, the resulting reconstructions are closely correlated with the evolutionary distance of the taxa under study, suggesting that a diligent selection of target pangenomes is essential for maintaining cohesiveness of the method and consistency of the inference, serving as an internal control for an arbitrary selection of queries. The PathTrace method is a first step towards the large-scale analysis of metabolic pathway evolution and our deeper understanding of functional relationships reflected in emerging pangenome collections.


2020 ◽  
Author(s):  
Bhavana Deore ◽  
Kathleen L. Sampson ◽  
Thomas Lacelle ◽  
Nathan Kredentser ◽  
Jacques Lefebvre ◽  
...  

<div>3D printing has enabled the unique combination of structures, geometries and functional properties </div><div>otherwise unattainable via traditional manufacturing techniques, yet its adoption as a mainstream </div><div>manufacturing platform for functional objects is hindered by the physical challenges in printing of </div><div>multiple materials. Vat polymerization offers a polymer chemistry-based approach to generating </div><div>smart objects, in which phase separation is controlled in order to achieve, at once, desirable </div><div>chemical and functional properties of final 3D printed objects, and indeed direct-production of 3D </div><div>printed smart objects. This study demonstrates how the spatial distribution of different material </div><div>phases can be modulated by controlling the kinetics of gelation, polymer network density and </div><div>material diffusivity through the judicious selection of photoresin components. A rich selection of </div><div>morphologies and functional coatings are generated, illustrating a promising way forward in the </div><div>integration of dissimilar materials in 3D printed smart or functional objects. </div>


2021 ◽  
Vol 58 (5) ◽  
pp. 334-341
Author(s):  
Ilona Podkowa-Zawadzka ◽  
Tomasz Wasilewski ◽  
Małgorzata Zięba

Abstract The aim of the study was to evaluate the effects of hydrophilic microcrystalline cellulose, hydrophobic talc and mixtures of cellulose and talc when used as fillers in powdered bath cosmetics. A number of model formulations were developed that contained fillers in different compositions. Prototypical formulations were prepared and evaluated for their functional properties and skin-drying effect. An increase in the concentration of talc was found to reduce the ability of the formulations to emulsify fatty soils and, consequently, decrease the skin-drying effect after washing. Another result of the study is that a high content of talc does not significantly impair the foaming ability, and the presence of talc improves the stability of generated foam.


Sign in / Sign up

Export Citation Format

Share Document