1. Use of Non-Conventional Yeast Yarrowia lipolytica in Treatment or Upgradation of Hydrophobic Industry Wastes

   • Katarzyna Wierzchowska
   • Bartłomiej Zieniuk
   • Agata Fabiszewska

   Review Open access 16 July 2021 Pages: 757 - 779

   

2. A Critical Review of Challenges Faced by Converting Food Waste to Bioenergy Through Anaerobic Digestion and Hydrothermal Liquefaction

   • Yanna Liang

   Review 04 August 2021 Pages: 781 - 796

   

3. Role of Metals in Biochar Production and Utilization in Catalytic Applications: A Review

   • Priya Shrestha
   • Dave D. Chun
   • Naomi B. Klinghoffer

   Original Paper 18 July 2021 Pages: 797 - 822

   

4. Valorization of Heavy Waste of Modern Intensive Shrimp Farming as a Potential Source for Chitin and Chitosan Production

   • Pham Thi Dan Phuong
   • Trang Si Trung
   • Nguyen Van Hoa

   Original Paper 26 August 2021 Pages: 823 - 830

   

5. Effects of Dehairing Treatment on Gelatin Yield and Quality from Bovine Hides

   • Bimol C. Roy
   • Chamali Das
   • Heather L. Bruce

   Original Paper 22 September 2021 Pages: 831 - 843

   

6. Evaluation of Roasting Conditions as an Attempt to Improve Bioactive Compounds and Antioxidant Activities of Pine Nut Shell and Skin

   • Nadya Mara Adelina
   • He Wang
   • Yuhong Zhao

   Original Paper 04 October 2021 Pages: 845 - 861

   

7. Composting as Sustainable Managing Option for Seaweed Blooms on Recreational Beaches

   • Engracia Madejón
   • Marco Panettieri
   • Alfredo Pérez-de-Mora

   Original Paper Open access 28 August 2021 Pages: 863 - 875

   

8. Emerging Synergies on the Co-treatment of Spent Coffee Grounds and Brewer’s Spent Grains for Ethanol Production

   • Elli Maria Barampouti
   • Christos Grammatikos
   • Sofia Mai

   Original Paper 23 August 2021 Pages: 877 - 891

   

9. Conversion Efficiency of Lignin-Rich Olive Pomace to Produce Nutrient-Rich Insect Biomass by Black Soldier Fly Larvae, Hermetia illucens

   • Remondah R. Ramzy
   • Marco A. El-Dakar
   • Hong Ji

   Original Paper 30 August 2021 Pages: 893 - 903

   

10. Valorisation of Coffee Pulp for Development of Innovative Probiotic Beverage Using Kefir: Physicochemical, Antioxidant, Sensory Analysis and Shelf Life Studies

    • Siddhi Patil
    • Vaibhavi Pimpley
    • Pushpa S. Murthy

    Original Paper 20 August 2021 Pages: 905 - 916

    

11. Valorization of Cyprinus Carpio Skin for Biocompatible Collagen Hydrolysates with Potential Application in Foods, Cosmetics and Pharmaceuticals

    • Elena Dănilă
    • Raluca Stan
    • Raluca Ţuţuianu

    Original Paper 04 September 2021 Pages: 917 - 928

    

12. Corncob as a Substrate for the Cultivation of Lentinula edodes

    • Hailong Yu
    • Dan Zhang
    • Beibei Lv

    Original Paper 06 September 2021 Pages: 929 - 939

    

13. Methodology Proposed for Estimating Biowaste Generation Using Municipal Rurality Indexes

    • M. Baquero
    • E. Cifrian
    • A. Andrés

    Original Paper Open access 07 September 2021 Pages: 941 - 954

    

14. Xylose Release from Sugarcane Bagasse via Acid-Catalyzed Hydrothermal Reaction and Its Conversion into Furfural Using Teff (Eragrostis tef) Straw-Based Catalyst

    • Negesso Wakushie Dulie
    • Belay Woldeyes
    • Hundessa Dessalegn Demsash

    Original Paper 16 September 2021 Pages: 955 - 965

    

15. Marine Fungi as Potential Eco-Sustainable Resource for Precious Metals Recovery from Electronic Waste

    • Christian Galasso
    • Xabier Lekube
    • Michael Tangherlini

    Original Paper 23 September 2021 Pages: 967 - 976

    

16. Evaluation of Filter Cake Oil as Antifoam in Yeast Production: New Use for this By-Product of the Sugarcane Derivatives Industry

    • Indira Pérez
    • Arletis Cruz
    • José Vela

    Original Paper 24 September 2021 Pages: 977 - 987

    

17. By-Products as Substrates for Production of Selenium-Enriched Pleurotus ostreatus Mushrooms

    • Diene France de Souza
    • Marliane de Cássia Soares da Silva
    • Monique Renon Eller

    Original Paper 25 September 2021 Pages: 989 - 1001

    

18. Effects of Feeding Regimes on Process Performance and Microbial Community Structure in Anaerobic Semi-continuously Stirred Tank Reactors Treating Corn Stover

    • Yuqian Li
    • Junwei Ma
    • Xiujin Li

    Original Paper 28 September 2021 Pages: 1003 - 1014

    

19. Effect of Degree of Hydrolysis on Biochemical Properties and Biological Activities (Antioxidant and Antihypertensive) of Protein Hydrolysates from Pacific Thread Herring (Ophistonema libertate) Stickwater

    • Emmanuel Martínez-Montaño
    • Rosa María Sarmiento-Machado
    • Jesús Aarón Salazar-Leyva

    Original Paper 01 October 2021 Pages: 1015 - 1027

    

20. Chemically Enhanced Solid–Liquid Separation of Digestate: Suspended Solids Removal and Effects on Environmental Quality of Separated Fractions

    • Giovanni Beggio
    • Wei Peng
    • Alberto Pivato

    Original Paper Open access 05 October 2021 Pages: 1029 - 1041

    

21. Can Wood Ashes of Commonly Planted Tree Species in Ghana be Applied as Fertilizers?

    • Michael O. Asare
    • Jerry Owusu Afriyie
    • Michaela Jungová Krbová

    Original Paper 04 October 2021 Pages: 1043 - 1058

    

22. Techno-Economic and Environmental Assessment for Biomethane Production and Cogeneration Scenarios from OFMSW in Mexico

    • Omar Anaya-Reza
    • María F. Altamirano-Corona
    • Alfonso Durán-Moreno

    Original Paper 08 October 2021 Pages: 1059 - 1075

    

23. Two-Step Modification Pathway for Inducing Lignin-Derived Dispersants and Flocculants

    • Malak Aldajani
    • Niloofar Alipoormazandarani
    • Pedram Fatehi

    Original Paper 22 September 2021 Pages: 1077 - 1088

    

24. Spent Mushroom Substrates Valorization via Brand New Multirecycled Polyfunctional Biologics Producing on Them

    • Julia Anatolievna Titova

    Original Paper 20 August 2021 Pages: 1089 - 1100

    

25. Production and Recovery of Exo-polygalacturonase from Umbu (Spondias tuberosa) Residue

    • Ângela Maria Santiago
    • Líbia de Sousa Conrado Oliveira
    • Pablícia Oliveira Galdino

    Original Paper 22 August 2021 Pages: 1101 - 1115

    

26. Biorefinery-Fermentation of Agro-Wastes by Haloferax lucentensis GUBF-2 MG076878 to Haloextremozymes for use as Biofertilizer and Biosynthesizer of AgNPs

    • Sanket K. Gaonkar
    • Irene J. Furtado

    Original Paper 29 August 2021 Pages: 1117 - 1133

    

27. Protein Recovery from New Zealand Oil Rapeseed (Brassica napus) Cake

    • Gert-Jan Moggré
    • Mario Alayon Marichal
    • Teresa Moreno

    Short Communication 02 September 2021 Pages: 1135 - 1141

    

28. Towards Valorization of Bovine Blood Plasma: Optimal Design of a Culture Medium Based on Bovine Blood Plasma with Enzymatically Hydrolyzed Proteins for the Growth of a Probiotic Bacterium by Submerged Fermentation

    • Pedro J. Barragán
    • Óscar J. Sánchez
    • Lorenzo J. Martínez

    Original Paper 02 September 2021 Pages: 1143 - 1155

    

29. Chemical and Biological Delignification Treatments from Blue Agave and Sorghum By-Products to Obtain Cellulose Nanocrystals

    • J. A. Resendiz-Vazquez
    • R. Roman-Doval
    • S. Mendoza

    Original Paper 03 September 2021 Pages: 1157 - 1168

    

30. Extracting and Physicochemical Properties of Carotenoprotein from Shrimp Processing Waste by Proteases-Mediated Hydrolysis

    • Parastoo Pourashouri
    • Hojat Mirsadeghi
    • Aynaz Khodanazary

    Original Paper 03 September 2021 Pages: 1169 - 1178

    

31. Methane Production Using Brewery Spent Grain: Optimal Hydrothermolysis, Fermentation of Waste and Role of Microbial Populations

    • Marina Mauro Gomes
    • Camila Abreu B. Silva Rabelo
    • Maria Bernadete Amâncio Varesche

    Original Paper 03 September 2021 Pages: 1179 - 1194

    

32. Effect of Aeration Methods on the Organic Matter Degradation, Microbial Community and Their Catabolic Function During Composting

    • Hapsari Puspitaloka
    • Hiroshi Mimoto
    • Kiyohiko Nakasaki

    Original Paper 04 September 2021 Pages: 1195 - 1205

    

33. Strategic Nutrient Enhancement of Mustard Oil Seed Cake by Briquetting and Koji Fermentation for Ruminants Feed

    • Debosmita Chakraborty
    • Nayanika Sarkar
    • Samuel Jacob

    Original Paper 06 September 2021 Pages: 1207 - 1221

    

34. Residual Waste After Protein Isolation From Ethanol-Treated Rapeseed Meal has Physico-Chemical Properties for Functional Food Systems Formulation

    • Radoslav Georgiev
    • Hristo Kalaydzhiev
    • Vesela I. Chalova

    Original Paper 09 September 2021 Pages: 1223 - 1232

    

35. Green Solvents to Value Annona muricata L. Leaves as Antioxidants Source: Process Optimization and Potential as a Natural Food Additive

    • Fernando Castro Leal
    • Fabiane Oliveira Farias
    • Luciana Igarashi-Mafra

    Short Communication 15 September 2021 Pages: 1233 - 1241

    

36. Production of Vermicompost by Utilizing the Leaves of the Hazardous Xerophyte Prosopis (Prosopis juliflora)

    • Pratiksha Patnaik
    • Tabassum-Abbasi
    • S. A. Abbasi

    Original Paper 17 September 2021 Pages: 1243 - 1254

    

37. Preparation and Application of Sewage Sludge Bio-char/Zero Valent Iron (SSBC/ZVI) Composite for Improving the Biodegradability of a Real Chemical Synthesis-Based Pharmaceutical Wastewater

    • Gaoxiang Qi
    • Xiaobo Wang
    • Yu Shen

    Original Paper 20 September 2021 Pages: 1255 - 1266

    

38. Circular Economy Applied to Organic Residues and Wastewater: Research Challenges

    • Bénédicte Bakan
    • Nicolas Bernet
    • Anne Tremier

    Short Communication Open access 24 August 2021 Pages: 1267 - 1276

    

39. Pyrolysis Treatment Enables Safe Application of Sewage Sludge in Horticulture: Tracking Potentially Toxic Elements Through the Biochar-Soil–Plant System in Tomato

    • Samaneh Tahervand
    • Mohsen Jalali
    • Wolfram Buss

    Original Paper 29 August 2021 Pages: 1277 - 1292

    

40. Evaluation of Fuel Quality of Invasive Alien Plants and Tropical Hardwoods as Potential Feedstock Materials for Pyro-Gasification

    • Nnanna-jnr M. Okoro
    • Ugochukwu M. Ikegwu
    • Michael O. Daramola

    Original Paper 24 September 2021 Pages: 1293 - 1310

    

41. Mesoporous Silica from Parangtritis Beach Sand Templated by CTAB as a Support of Mo Metal as a Catalyst for Hydrocracking of Waste Palm Cooking Oil into Biofuel

    • Gesha Desy Alisha
    • Wega Trisunaryanti
    • Akhmad Syoufian

    Original Paper 31 August 2021 Pages: 1311 - 1321

    

42. Investigation of a Carbon-Based Sorbent Prepared from FeSO₄-Flocculated Sludge for Elemental Mercury Removal from Syngas

    • Yuchi Chen
    • Hao Rong
    • Hongcheng Ruan

    Original Paper 20 September 2021 Pages: 1323 - 1337

    

43. Effective Synergistic Effect of Treatment and Modification on Spent Coffee Grounds for Sustainable Biobased Composites

    • Dang Mao Nguyen
    • Vu Thi Nhung
    • Patrick Perre

    Original Paper 03 September 2021 Pages: 1339 - 1348

    

44. Investigation of the Effect of the Fibre Inter-Node Length on the Tensile Strength of Maize Stem Fibres at Different Growth Stages

    • H. Ramasawmy
    • J. Chummun
    • P. D. Emrith

    Original Paper 20 August 2021 Pages: 1349 - 1361