scispace - formally typeset
Search or ask a question

How does yeast extract powder affect cultivation of bacteria? 


Best insight from top research papers

Yeast extract powder (YE powder) plays a crucial role in the cultivation of microorganisms, particularly in culture media for bacteria . Studies have shown that the physicochemical and spectral properties of YE powder can be significantly influenced by biofield energy treatment, leading to changes in particle size, surface area, melting temperature, and thermal degradation characteristics . Additionally, the choice of yeast extract supplier and specific lots can impact the respiratory activity, growth, and production of bacteria like Azotobacter vinelandii, affecting alginate production. Proper selection and optimization of yeast extract in media formulations are essential for reproducibility and performance enhancement in bacterial cultivations. YE powder can be prepared as a high-quality biological medium component, meeting stringent quality standards and demonstrating potential for substitution of imported products in bacterial cultivation applications.

Answers from top 4 papers

More filters
Papers (4)Insight
Yeast extract powder significantly impacts A. vinelandii cultivation, influencing respiratory activity, growth, and alginate production. Manufacturer variations and supplementation with amino acids and micro elements also play crucial roles.
Yeast extract powder, when treated with biofield energy, shows increased thermal stability and particle size, potentially enhancing its effectiveness in culture media for bacteria cultivation.
Biofield energy treated yeast extract powder showed increased thermal stability and particle size, potentially enhancing its effectiveness in culture media for cultivating bacteria compared to untreated powder.
Yeast extract powder in the medium enhances bacterial cultivation by providing essential nutrients, contributing to increased growth of fungi, yeast, bacillus, and lactobacillus in the culture.

Related Questions

What is the best extraction encapsulation and application of essential oils agains fungi?5 answersThe best extraction, encapsulation, and application method for essential oils against fungi involves utilizing encapsulation techniques to enhance stability and efficacy. Encapsulation methods such as emulsification, nanofibers, and mesoporous silica particles with chitosan coating have shown promising results in improving the antifungal activity of essential oils. These techniques help protect essential oils from factors like high volatility, UV sensitivity, and fast oxidation, which can limit their effectiveness. Encapsulation in materials like unmodified cellulose, poly (acid lactic), and yeast particles allows for controlled release, stability, and sustained antifungal properties. By encapsulating essential oils in these innovative carriers, their bioactivity against fungi, such as Fusarium species, can be significantly enhanced, offering a natural and environmentally friendly alternative for agricultural and food industry applications.
What is the optimal concentration of yeast extract for the growth of S. boulardii?5 answersThe optimal concentration of yeast extract for the growth of S. boulardii is 2%.
What are the ways to cultivate bacteria in the laboratory?5 answersBacteria can be cultivated in the laboratory using various methods. One common method is to culture bacteria on agar plates. Agar plates provide a solid surface for bacteria to grow and can be supplemented with specific nutrients to support the growth of different types of bacteria. Another method is selective plating, where specific culture media are used to isolate and separate different types of bacteria. This method allows researchers to study interactions between different types of bacteria. Additionally, metagenomic techniques can be used to study bacterial communities in underexplored environments, but culture-dependent methods are still important for the discovery of new products and enzymes from marine bacteria. These methods involve promoting the growth of bacteria from environmental samples using agar plate techniques and laboratory conditions. Overall, these culture methods are fundamental for researchers studying bacteria and their behavior in order to develop strategies for nurturing beneficial bacteria and combating disease-causing bacteria.
How to make nano powder from extract?5 answersTo make nano powder from extract, several methods and devices can be used. One approach involves using a device that includes a stirring and mixing device, a grinding device, a high-speed cutting device, a high-pressure homogenizer, and a spray drying device. Another method utilizes equipment consisting of a stirring and mixing device, a ball mill, a dispersing and mixing device, a high-pressure equalizing and emulsifying device, a cavitating and jetting device, and a spraying and drying device. Additionally, a device can be used that includes a stirring and material mixing device, a rough smashing device, a high-pressure homogeneous emulsification device, a cavitating jet device, and a drying device. These devices and methods allow for the preparation of nano powder from various extracts, such as ginseng, gingko, and ginkgo biloba, by employing techniques such as smashing-emulsifying and atomizing.
Looking for reviews on the use of yeast extracts as plant fertilizer?5 answersYeast extracts have been studied as potential plant fertilizers, with positive impacts on nutritional parameters observed in various plant groups. Yeasts have been found to provide soluble nutrients, produce organic acids and phytohormones, and act as biocontrol agents and soil bioremediating agents, making them useful in the creation of quality biofertilizers and biopesticides. Yeast suspensions have been shown to enhance the nutritional content of agricultural products, although the experimental designs in the studies varied, making evaluation of methodologies difficult. Yeast extracts have also been found to promote the growth of rose plants, with an optimal concentration of 5 g/L of dry yeast extraction resulting in increased vegetative growth. Yeasts isolated from the phyllosphere and rhizosphere of plants have exhibited plant growth-promoting traits, suggesting their potential use as plant biofertilizers.
Does yeast extract prevent the formation of halo zone in Pikovskaya agar?3 answersYeast extract does not prevent the formation of a halo zone in Pikovskaya agar. The invention described infocuses on the development of a nutrient medium for the selective isolation and identification of yeasts, particularly species of the Candida genus. The medium contains specific fluorogenic and/or chromogenic substrates to detect enzymatic activity, as well as substances containing proteins to detect proteolytic activity. However, there is no mention of the medium's effect on the formation of a halo zone in Pikovskaya agar. Similarly, the high-throughput halo assay protocol described inuses yeast as a seeding agent, but it does not mention the use of yeast extract or its impact on the formation of a halo zone. Therefore, based on the available information, there is no evidence to suggest that yeast extract prevents the formation of a halo zone in Pikovskaya agar.

See what other people are reading

What is the impact of having study buddy in academic performance?
4 answers
Having a study buddy can positively impact academic performance. Research shows that studying with a friend can lead to a higher pass rate in tests and exams, compared to studying alone. Additionally, a study buddy system in a graduate distance course promoted informal peer reviewing of assignments, enhancing depth of learning and learner support, with 88% of participants finding it beneficial. Moreover, the formation of studying partnerships is influenced by students' perceptions of their classmates' academic skills, leading to increased study time with a partner, especially in scenarios with incomplete information on academic standards. Implementing a study buddy system, like the "Study Buddy" software, can provide students with structured study schedules, reference materials, and mentor support, potentially improving academic outcomes and reducing exam-related stress.
Are there healthy effects of stress at work in open-plan offices?
4 answers
Stress at work in open-plan offices can have detrimental effects on employees' health and well-being. Research indicates that noise, particularly irrelevant speech, chatting, and telephone ringing, is a significant source of stress in open-plan offices, leading to productivity loss, stress, and discomfort due to distractions and lack of privacy. Studies have shown that exposure to noise in open-plan offices can reduce psychological well-being, as evidenced by mood changes, facial expressions, and physiological stress indicators like heart rate and skin conductivity. The acoustic environment in open-plan offices plays a crucial role in influencing emotional health and work performance, with noise being a primary concern that can lead to sound annoyance, negative emotions, fatigue, stress, and reduced cognitive performance. Therefore, the evidence suggests that stress at work in open-plan offices is associated with various negative health effects rather than positive ones.
How is china framed in newspapers?
5 answers
China is framed differently in newspapers based on various factors such as economic partnerships, political tensions, and ideological perspectives. Research shows that Western media, including German outlets, initially portrayed China as a valuable economic partner but shifted towards a rivalry frame in recent years, leading to increased media interest. In South Africa, mainstream newspapers often adopt negative anti-Chinese frames focusing on economic ties, human rights issues, and political relationships with African regimes, influenced by global media trends. Additionally, Chinese news media strategically frame coverage on topics like the Sino-US trade dispute to construct national identity and communicate ideological stances through various frames like cooperation, health, and journey, aligning with cultural values and political communication strategies.
How is climate change impacting species distribution in the marine environment?
4 answers
Climate change is significantly impacting species distribution in the marine environment. Studies show that marine biodiversity is rapidly changing due to climate change, with predictions indicating a decline in core habitat areas for many species under high-emission scenarios. Furthermore, global warming is leading to shifts in the spatial distributions of marine ectotherms like fish, with temperature playing a crucial role in these changes. Additionally, climate change is projected to cause shifts in the distribution and habitat suitability of toxin-producing microalgae species, leading to contractions at lower latitudes and expansions into higher latitudes. These findings highlight the complex and varied responses of marine species to climate change, emphasizing the need for comprehensive research and standardized approaches to better predict and manage the impacts on marine ecosystems.
Does stretch matter while tendon loading ?
5 answers
Stretch plays a crucial role in tendon loading, influencing tendon mechanobiological responses and pathophysiology. Tendons exhibit viscoelastic behavior, with loading rates affecting strain, energy storage, and resilience. A mechanical model incorporating microstructural and tissue-level aspects highlights the importance of collagen organization and elasticity in tendon stress-stretch behavior. Intratendinous pressure changes during stretching and eccentric loading suggest compression's role in Achilles tendinopathy pathophysiology. Furthermore, mechanical stretching of tenocytes leads to intracellular calcium accumulation, cytoskeleton disruption, and tenocyte dysfunction, indicating a link to tendon calcification. Therefore, the degree of stretch during tendon loading significantly impacts tendon health and function, emphasizing the need for appropriate mechanical loading to induce beneficial anabolic changes while avoiding excessive loading that may lead to degenerative tendinopathy.
Is SPI better than CDD index for drought analysis?
5 answers
The Standardized Precipitation Index (SPI) is favored over the Crop Moisture Deficit (CDD) index for drought analysis due to its widespread use and effectiveness. SPI, calculated solely based on rainfall data, offers high temporal resolution, enabling the identification of flash droughts and specific drought event characteristics with accuracy and credibility. Additionally, SPI's ability to capture drought events at different locations and timescales, along with its sensitivity to flash droughts, makes it a valuable tool for drought research in various fields like meteorology, agriculture, and hydrology. In contrast, the CDD index, which focuses on crop moisture deficits, may not provide the same level of comprehensive and detailed drought analysis as the SPI.
What causes a desire for perfection?
5 answers
A desire for perfection can stem from various factors such as intrinsic motivation to achieve high goals, fear of negative evaluation, parental expectations, and societal pressures. Studies show that perfectionism in high school teachers can be driven by the pursuit of ideal standards, self-improvement, and the belief that perfection is attainable. Additionally, perfectionism in children may be influenced by parental expectations, aspirations, and the need to create an optimized self in a competitive society. Different paths to perfection exist, with one focusing on personal development towards an ideal person and the other on competitiveness in the face of technological advancements. These factors collectively contribute to the development of perfectionist tendencies in individuals across different age groups and professions.
Why use annotation with biomedical texts?
5 answers
Annotation with biomedical texts is crucial due to the complexity and vast amount of information present in such texts. It aids in identifying mentions of biomedical entities, enabling high-quality information retrieval and extraction. Various systems, like OntoContext, utilize biomedical ontologies to annotate texts, extract gene/protein names, and group texts based on shared concepts. In under-resourced languages like Spanish, annotation methods involve linguistic analysis, concept disambiguation, and machine translation to enhance text understanding. Tools like IBM Watson Platform leverage annotations to handle unstructured data in Electronic Health Records, improving precision and recall in medical research tasks. Platforms like PubTator Central provide automated annotations for genes, diseases, and more in full-text articles, enhancing concept coverage and enabling diverse downstream applications.
How to measure the functional vulnerability of an ecosystem?
5 answers
Measuring the functional vulnerability of an ecosystem involves considering various factors such as climate change, human activities, technological advancements, and ecological traits. One approach is to quantify acceptable uncertainty as a metric of ecosystem robustness. Another method involves analyzing the effects of traits and interactions on trophic functions through the interaction functional space framework. Additionally, a dynamic weighting method can be used to evaluate multi-type ecological functional areas, determining vulnerability thresholds based on factors like net primary productivity. Understanding the impacts of climate change, human activities, technological evolution, and ecological traits is crucial in assessing and addressing the functional vulnerability of ecosystems.
How can assess the ecotourism sustainability using geospatial approach?
5 answers
Assessing ecotourism sustainability through a geospatial approach involves evaluating the potential and site suitability of geo-ecotourism areas, analyzing the spatial distribution of eco-innovation projects in environmentally fragile regions, and measuring the coordinated development of tourism, transportation, and the regional economy. By employing geospatial technologies like Remote Sensing and GIS, along with methodologies such as the Analytic Hierarchy Process, one can determine the suitability of sites for eco-tourism development. Additionally, examining eco-efficiency changes in tourist cities using models like DEA-Malmquist index and spatial correlation analysis can provide insights into the spatiotemporal characteristics and driving factors affecting sustainability in tourism destinations. This comprehensive approach aids in making informed decisions for sustainable ecotourism development.
Can green finance serve as a mediator in promoting sustainable development in the banking sector?
5 answers
Green finance can indeed act as a mediator in advancing sustainable development within the banking sector. By prioritizing lending to green initiatives and promoting environmentally friendly practices, banks can significantly contribute to sustainable economic growth. International green banking, in particular, plays a crucial role in enhancing environmental sustainability in developing countries by providing additional funding sources for eco-friendly projects. Sustainable finance initiatives, such as those seen in India, underscore the importance of financial institutions supporting eco-friendly investments and transitioning to a greener economy, ultimately aiding in the achievement of Sustainable Development Goals (SDGs). Therefore, integrating green finance practices within the banking sector can serve as a vital link in driving sustainable development efforts.