Effects of pre-freezing blanching procedures on the physicochemical properties and microbial quality of frozen sugar kelp

2021 ◽  
Author(s):  
Samuel Akomea-Frempong ◽  
Jennifer J. Perry ◽  
Denise I. Skonberg
Keyword(s):  
Physicochemical Properties ◽  
Microbial Quality

scholarly journals Physicochemical Properties and Microbial Quality of Tremella aurantialba Packed in Antimicrobial Composite Films

Molecules ◽  
2017 ◽  
Vol 22 (3) ◽  
pp. 500 ◽  
Author(s):  
Jian Fan ◽  
Zhuangzhuang Chu ◽  
Lin Li ◽  
Tianrui Zhao ◽  
Min Yin ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Composite Films ◽  
Microbial Quality

scholarly journals Physicochemical Properties and Microbial Quality of Water Used in Selected Poultry Farms in the Ashanti Region of Ghana

2019 ◽  
Vol 13 (1) ◽  
pp. 121-127
Author(s):  
Frank B. Osei ◽  
Vivian E. Boamah ◽  
Christian Agyare ◽  
Robert C. Abaidoo
Keyword(s):  
Drinking Water ◽  
Physicochemical Properties ◽  
Salmonella Typhi ◽  
Total Hardness ◽  
Contaminated Water ◽  
Microbial Quality ◽  
Animal Products ◽  
Quality Of Water ◽  
Poultry Farms

Background: Water plays an important role in both domestic and commercial settings. However, some physicochemical properties and biological contaminants could render water unsafe for use. Contaminated water from various sources is used as drinking water and for processing of animal products in animal farms, which has resulted in infections among animals, including poultry, and contaminated animal products on the market. Objective: To determine the physicochemical properties and microbial quality of water used as drinking water in selected poultry farms in the Ashanti region of Ghana. Methods: The pH, turbidity, conductivity, Total Dissolved Solids (TDS) and total hardness of poultry-drinking-water from 100 farms were assessed following WHO guidelines. The presence of total coliforms and faecal Enterococci was determined using the membrane filtration method. The presence of Escherichia coli, Salmonella typhi, Staphylococcus aureus and coagulase-negative Staphylococci were determined using selective culture media and their identities confirmed using biochemical tests. Results: pH of the samples ranged from 3.76 to 8.90, turbidity from 0.20 to 617 NTU, conductivity from 23.6 to 1114.0 µS/cm, TDS from 11.3 to 557 mg/L and total hardness from 17.1 to 192.0. Total coliforms and faecal Enterococci were present in 97% and 56% samples respectively. Escherichia coli, Salmonella typhi, Staphylococcus aureus and non-coagulase staphylococci were isolated from four samples. Conclusion: Water used on poultry farms has varied physicochemical properties and could also be a potential source of pathogenic organisms. There should be regular monitoring and checks on the quality of water used in animal husbandry in order to prevent the use of contaminated water for drinking and processing of animal products.

Microbial Quality of Human Wastes and Treatment Plant Effluent

1986 ◽  
Vol 18 (7-8) ◽  
pp. 257-265 ◽  
Author(s):  
K. Kawamura ◽  
M. Kaneko
Keyword(s):  
Staphylococcus Aureus ◽  
Vibrio Cholerae ◽  
Treatment Plant ◽  
Microbial Quality ◽  
Chlorination Process ◽  
Fecal Streptococci ◽  
Human Wastes ◽  
Micro Organisms ◽  
Spore Forming Bacteria

In order to evaluate the microbial quality of human wastes and effluents from treatment processes, the microbial flora of samples was examined. Total coliforms, fecal coliforms and fecal streptococci were used as indicator micro-organisms, and Vibrio cholerae non O-1, Salmonella, Staphylococcus aureus and Welchii (Clostridium perfrigens) were selected as pathogenic organisms. Salmonella was detected in only the water samples from the night soil treatment plant, while Staphylococcus aureus was detected in the night soil and the samples from the night soil purification tanks. Vibrio cholerae non 0-1 was not detected in any samples, but Welchii existed in almost all samples. Generally, the density levels and distribution patterns of the indicator micro-organisms were similar to those in the raw wastewaters. The microbial flora was not changed remarkably after the primary sedimentation process and the biological treatment process. After the chlorination process, total colonies, spore-forming bacteria, Welchii, moulds and fecal streptococci could survive, and spore-forming bacteria formed the majority of the total colonies in the well-chlorinated effluents. Welchii at the level of 103/100 ml can be used as the indicator micro-organism to ensure a sanitary safe discharge, because it can survive at the level of 103−104/100 ml even if other indicators and pathogenic micro-organisms are inactivated completely by the chlorination process.

Physicochemical Properties, Microbial Quality and Sensory Attributes of Different Black Tea Brands

2017 ◽  
Vol 13 (3) ◽  
Author(s):  
Kobra Keshavarz Faizasa ◽  
Mohammadreza Koushki ◽  
Shiva Roofigary Haghighat
Keyword(s):  
Physicochemical Properties ◽  
Black Tea ◽  
Sensory Attributes ◽  
Microbial Quality

Impact of gelatin nanogel coating containing thymol and nisin on the microbial quality of rainbow trout fillets and the inoculated Listeria monocytogenes

2021 ◽  
Author(s):  
Fatemeh Mohajer ◽  
Saeid Khanzadi ◽  
Kobra Keykhosravy ◽  
Seyyed Mohammad Ali Noori ◽  
Mohammad Azizzadeh ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Listeria Monocytogenes ◽  
Microbial Quality

scholarly journals Physicochemical Characterization Cascade of Nanoadjuvant–Antigen Systems for Improving Vaccines

Vaccines ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 544
Author(s):  
Giuditta Guerrini ◽  
Antonio Vivi ◽  
Sabrina Gioria ◽  
Jessica Ponti ◽  
Davide Magrì ◽  
...  
Keyword(s):  
Immune Response ◽  
Protein Structure ◽  
Physicochemical Properties ◽  
Physicochemical Characterization ◽  
Protein Antigen ◽  
Efficacy And Safety

Adjuvants have been used for decades to enhance the immune response to vaccines, in particular for the subunit-based adjuvants. Physicochemical properties of the adjuvant-protein antigen complexes, such as size, morphology, protein structure and binding, influence the overall efficacy and safety of the vaccine. Here we show how to perform an accurate physicochemical characterization of the nanoaluminum–ovalbumin complex. Using a combination of existing techniques, we developed a multi-staged characterization strategy based on measurements of increased complexity. This characterization cascade has the advantage of being very flexible and easily adaptable to any adjuvant-protein antigen combinations. It will contribute to control the quality of antigen–adjuvant complexes and immunological outcomes, ultimately leading to improved vaccines.

scholarly journals Comparison of Morphological and Physicochemical Properties of a Floury Rice Variety upon Pre-Harvest Sprouting

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 746
Author(s):  
Chae-Min Han ◽  
Jong-Hee Shin ◽  
Jung-Bae Kwon ◽  
Jong-Soo Kim ◽  
Jong-Gun Won ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Rice Variety ◽  
Wheat Variety ◽  
Economic Loss ◽  
Rice Grain ◽  
Starch Granules ◽  
Rice Varieties ◽  
Starch Structure ◽  
Gelatinization Properties

Pre-harvest sprouting (PHS) severely reduces rice grain yield, significantly affects grain quality, and leads to substantial economic loss. In this study, we aimed to characterize the physicochemical properties and processing quality of the Garumi 2 flour rice variety under PHS conditions and compare them with those of the Seolgaeng, Hangaru, Shingil, and Ilpum rice varieties and the Keumkang wheat variety. Analysis of the molecular structure of starch revealed uniform starch granules, increased proportions of short-chain amylopectin in DP 6–12 (51.0–55.3%), and enhanced crystallinity (30.7–35.7%) in rice varieties for flour compared with the Ilpum cooking rice variety. PHS significantly altered the starch structure and gelatinization properties of Garumi 2. It also caused surface pitting and roughness in Garumi 2 starch granules and decreased their crystallinity. Collectively, the findings of this study provide important novel insights into the effects of PHS on the physicochemical properties of Garumi 2 floury rice for flour.

scholarly journals SIFAT FISIKOKIMIA HAND AND BODY CREAM DENGAN PEMANFAATAN EKSTRAK ETANOL BUNGA GEMITIR (Tagetes erecta L.) DAN BUNGA PACAR AIR MERAH (Impatiens balsamina L.) DARI LIMBAH CANANG

2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Dewa Ayu Ika Paramitha ◽  
James Sibarani ◽  
Ni Made Suaniti
Keyword(s):  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
National Standard ◽  
Tagetes Erecta ◽  
Basic Formula ◽  
Impatiens Balsamina ◽  
Ethanol Extracts ◽  
Tagetes Erecta L ◽  
Microbial Numbers

ABSTRAK: Pada penelitian ini dilakukan pengembangan formula sediaan hand and body cream dengan memanfaatkan sumber antioksidan yang dimiliki oleh dua jenis ekstrak etanol yaitu ekstrak bunga pacar air merah (Impatiens balsamina L.) dan bunga gemitir (Tagetes erecta L.) dengan taraf perlakuan sebesar 1% dari masing-masing ekstrak (FPM dan FG) dan campuran 0,5% ekstrak pacar air merah dan 0,5% ekstrak gemitir (FCPMG). Pengujian terhadap  produk dilakukan pada sifat fisikokimia  meliputi pH, viskositas, aktivitas antioksidan, angka lempeng total mikroba, dan ukuran partikel. Berdasarkan hasil pengujian produk hand and body cream yang dihasilkan memiliki antioksidan yang cukup tinggi sebagai produk perawatan tubuh dengan penambahan 1% ekstrak etanol pacar air merah, gemitir dan campuran dari kedua ekstrak etanol. Kualitas produk hand and body cream yang dihasilkan baik dan memenuhi standar mutu SNI dari aspek nilai pH, viskositas, dan nilai ALT. Warna yang dihasilkan mulai dari warna kuning kemerahan sampai dengan warna kuning, dan partikel yang dimiliki oleh produk adalah nanopartikel dengan sistem polidispersi. ABSTRACT: Formulations of hand and body creams using ethanol extracts of flowers of red Impatiens balsamina L. And Tagetes erecta L. As antioxidant sources have been developed.  One percent of  extracts (FPM and FG) and the mixture of 0.5% each extracts (FCPMG) were added to the basic formula. The analysis of physicochemical properties of the products was conducted including pH, viscosity, antioxidant activity, the size of the particles, and total microbial plate numbers. Based on the results, the quality of the hand and body creams meet the national standard of Indonesia (SNI) regarding to pH, viscosity, and the total microbial numbers. The colours of the hand and body creams resulted are reddish yellow to yellow with polydispersion nanoparticles.

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