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Fermentation, Volume 8, Issue 7

July 2022 - 53 articles

Cover Story: The need for alternative energy sources is constantly growing, while the focus has shifted to biomass valorization. The aim of this study was to determine the optimal pH and hydraulic retention time (HRT) for treating, through anaerobic digestion, a sorghum biomass and cow manure mixture. Both batch and CSTR systems are run for the investigation of the effect of pH on H2 and volatile fatty acids (VFAs) maximization as well as for the effect of HRT on H2 and CH4 production, respectively. The batch tests exhibited that pH values of 5 and 6 favored H2 and VFAs, respectively, while the two-stage CSTR system showed that the most efficient HRTs were 5 d (acidogenesis) and 25 d (methanogenesis). Reduced HRTs led to inhibition or overload, as indicated by the biogas productivity decline. View this paper
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Articles (53)

  • Article
  • Open Access
9 Citations
4,105 Views
13 Pages

Intensive horticultural systems for the production of vegetables in greenhouses represent one of the main industries generating organic waste, as those that do not meet the quality standards for the fresh market or the processing industry are discard...

  • Article
  • Open Access
3 Citations
2,461 Views
16 Pages

Shaping an Open Microbiome for Butanol Production through Process Control

  • Tiago Pinto,
  • Antonio Grimalt-Alemany,
  • Xavier Flores-Alsina,
  • Hariklia N. Gavala,
  • Krist V. Gernaey and
  • Helena Junicke

The growing awareness of limited resource availability has driven production systems towards greater efficiencies, and motivated the transition of wastewater treatment plants to water resource recovery facilities. Open microbiome fermentation offers...

  • Communication
  • Open Access
19 Citations
4,223 Views
7 Pages

Improvements in Human Keratinocytes and Antimicrobial Effect Mediated by Cell-Free Supernatants Derived from Probiotics

  • Ji Yeon Lee,
  • YongGyeong Kim,
  • Ja-I Kim,
  • Hyang-Yeol Lee,
  • Gi-Seong Moon and
  • Chang-Ho Kang

The skin acts as a physical and physiological barrier, thereby protecting the body from various environmental components and stimuli. Cell-free supernatants (CFS) derived from probiotics can improve skin functions and retain moisture. In this study,...

  • Review
  • Open Access
39 Citations
22,748 Views
18 Pages

Yeasts as Producers of Flavor Precursors during Cocoa Bean Fermentation and Their Relevance as Starter Cultures: A Review

  • Hugo Gabriel Gutiérrez-Ríos,
  • Mirna Leonor Suárez-Quiroz,
  • Zorba Josué Hernández-Estrada,
  • Olaya Pirene Castellanos-Onorio,
  • Rodrigo Alonso-Villegas,
  • Patricia Rayas-Duarte,
  • Cynthia Cano-Sarmiento,
  • Claudia Yuritzi Figueroa-Hernández and
  • Oscar González-Rios

During the fermentation of cocoa beans, the yeasts produce volatile organic compounds (VOCs). Through reactions associated with amino acid metabolism, yeasts generate important aroma precursors as acetate esters and fatty acid ethyl esters are essent...

  • Article
  • Open Access
9 Citations
3,065 Views
10 Pages

Enhancement of the Antihypertensive Effect of Fermented Sargassum horneri with Lactiplantibacillus pentosus SN001

  • Momoko Tamura,
  • Satoshi Shimizu,
  • Hiroshi Nagai,
  • Orie Yoshinari and
  • Naoko Hamada-Sato

Sargassum horneri is a seaweed with antihypertensive properties. However, it is underutilized in some areas, and effective utilization methods are being sought. In this study, we prepared a fermented S. horneri using lactic acid bacteria Lactiplantib...

  • Article
  • Open Access
13 Citations
2,831 Views
15 Pages

This study aimed at characterizing changes in rumen bacteria abundance and fermentation profiles by artificial saliva (AS) pH, and at evaluating the potential modulatory role of Aspergillus oryzae culture (AOC) in a rumen simulation technique (RUSITE...

  • Article
  • Open Access
27 Citations
7,023 Views
15 Pages

Probiotic and Antioxidant Potential of the Lactobacillus Spp. Isolated from Artisanal Fermented Pickles

  • Urva Akmal,
  • Ifra Ghori,
  • Abdelbaset Mohamed Elasbali,
  • Bandar Alharbi,
  • Arshad Farid,
  • Abdulhakeem S. Alamri,
  • Muhammad Muzammal,
  • Syed Mohammed Basheeruddin Asdaq,
  • Mohammed A. E. Naiel and
  • Shakira Ghazanfar

The present study was based on bacterial isolation with probiotic potential from artisanal fermented pickles. A total of 36 bacterial strains were isolated from 50 different artisanal fermented pickle samples. Nine isolates with promising probiotic p...

  • Article
  • Open Access
11 Citations
4,559 Views
12 Pages

Occurrence of Toxic Biogenic Amines in Various Types of Soft and Hard Cheeses and Their Control by Bacillus polymyxa D05-1

  • Marwa A. Saad,
  • Hagar S. Abd-Rabou,
  • Ebrahim Elkhtab,
  • Ahmed M. Rayan,
  • Ahmed Abdeen,
  • Afaf Abdelkader,
  • Samah F. Ibrahim and
  • Heba Hussien

Egyptian cheeses are considered an important part of the Egyptian diet. This study aimed to examine 60 random samples of different types of commercial cheeses in Egypt, including soft cheeses (Domiati and Tallaga) and hard cheeses (Cheddar and Ras)....

  • Article
  • Open Access
22 Citations
4,960 Views
15 Pages

Enhancement of Antioxidant Activities in Black Soy Milk through Isoflavone Aglycone Production during Indigenous Lactic Acid Bacteria Fermentation

  • Benediktus Yudo Leksono,
  • Muhammad Nur Cahyanto,
  • Endang Sutriswati Rahayu,
  • Rini Yanti and
  • Tyas Utami

Black soybeans contain high antioxidant compounds such as isoflavone but mainly in glucoside form, with low antioxidant activities. Fermentation by lactic acid bacteria (LAB) can enhance the antioxidant properties, but its ability is strain-dependent...

  • Review
  • Open Access
37 Citations
8,764 Views
39 Pages

Intensification of Acidogenic Fermentation for the Production of Biohydrogen and Volatile Fatty Acids—A Perspective

  • Sanjay Nagarajan,
  • Rhys Jon Jones,
  • Lucy Oram,
  • Jaime Massanet-Nicolau and
  • Alan Guwy

Utilising ‘wastes’ as ‘resources’ is key to a circular economy. While there are multiple routes to waste valorisation, anaerobic digestion (AD)—a biochemical means to breakdown organic wastes in the absence of oxygen&mda...

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Fermentation - ISSN 2311-5637Creative Common CC BY license