CLEANING AND DISINFECTION OF THE WINERY IN FRONT OF SARS-COV-2

CLEANING AND DISINFECTION OF THE WINERY IN FRONT OF SARS-COV-2
CLEANING AND DISINFECTION OF THE WINERY IN FRONT OF SARS-COV-2

The global pandemic of the SARS-CoV-2 virus forces all sectors of activity to take extreme precautions and hygiene in their facilities to avoid contagion and protect their employees.

Transmission of the virus occurs mainly through a spray effect produced by coughing or sneezing. The particles produced can be deposited on all types of surfaces that, when touched, can transmit the virus. The data available so far suggests that the virus is viable, and therefore infectious, for periods ranging from hours to days, in metal, wood, glass or plastic (Kampf et al, 2020; van Doremalen et al, 2020). Therefore, it is essential to maintain all surfaces in a perfect hygienic state through disinfection in addition to the usual cleaning procedures. Although disinfection against bacteria is a common practice in wineries, disinfection against viral agents is not usual so the procedures and products used normally should be reviewed to ensure that they are also effective against viruses.

It is important to clarify that SARS-CoV2 is not transmitted through wine since this medium, due to its alcoholic and polyphenol content, is extremely hostile to the virus, as previously evidenced in the case of the coronavirus responsible for the SARS epidemic -Cov in 2005 (Wolff et al, 2005). However, the winery is a production environment in which certain disinfecting treatments can cause unwanted damage to the characteristics of the wine. Therefore, it is very important to define the appropriate treatment for those elements that are in direct contact with the wine at any time, without prejudice to using more general procedures in other areas of the winery (offices, changing rooms, etc.).

Previous information available on the efficacy of different disinfecting agents on coronaviruses (Rabeneau et al, 2005) suggest that this type of virus does not present special resistance against the action of different types of disinfectants. An updated lists of authorized disinfectants to eliminate different types of viruses according to European regulation EN-14476 has been published. (Chemical antiseptics and disinfectants. Quantitative suspension test for the evaluation of viricidal activity in medicine) that can be consulted on the pages of some relevant organizations (Ministry of Health of Spain (1); Agency of Protection of the Environment of the USA (2).

The preferred disinfection treatments to eliminate the virus are those that directly affect its lipid cover, based on the use of surfactants (detergents) and chelating agents (when using hard water). Also, solutions using quaternary ammonium as the active ingredient are also effective against coronavirus (Saknimit et al, 1988). These are the first choice for disinfestation when available.

Treatments with peracetic acid (mixtures of hydrogen peroxide and acetic acid) are also effective in destroying the virus coat and are widely used in the food industry for their low toxicity (Becker et al, 2017). Disinfecting treatments with ozone or high intensity UV-C light (220-280 nm) can be equally effective in eliminating the virus (Darnell et al, 2006) but require specific instrumentation that might be difficult to implement in the cellar.

Treatments based on caustic products are not especially effective (Pagat et al, 2007). Also, there is no evidence of effectiveness in disinfectants based on acidified sulfite solutions.

The commonly used chlorine treatments (bleach) cannot be used in production areas due to their ability to generate chlorophenol and chloroanisole. In these areas, it is recommended instead to use 70% hydro-alcoholic solutions that have been fully effective (Kampft et al, 2020).

To improve the efficiency of the process it is important that the surfaces are as clean of dust as possible, in order to maximize the effect of the disinfectant. The recommended protocol is, therefore, initial cleaning with soap and water, followed by disinfection with hydroalcoholic or quaternary ammonium solution. Once the disinfectant solution has been applied, you must let it act for 30 to 60 seconds and remove it with a disposable paper towel.

It is advisable to have a checklist of the different elements of the winery environment as exhaustively as possible in order to appropriately define which cleaning procedure is most appropriate in each case, including, in addition to the machinery and control systems, all the elements of furniture, office supplies, tools and instruments of the environment to ensure that it is used in the most appropriate procedure in each case

It is very important that the cleaning staff. have suitable protective equipment such as gloves, eye protection and / or barrier protection to prevent accidental eye contact. The use of soap and water or hydro-alcoholic gels as a first protection measure is essential and should be used before equipping and removing the protection elements. Obviously, in the case of disinfecting the work environment of an employee with suspected coronavirus infection, precautions must be extremed.

REFERENCES

  • Kampf, G., Todt, D., Pfaender, S., Steinmann, E. 2020. Persistence of coronaviruses on inanimate surfaces and their inactivation with biocidal agents. J. Hosp. Infect. 104(3): 246–251.

  • Pagat, A. M., Seux-Goepfert, R., Lutsch, C., Lecouturier, V., Saluzzo, J. F., Kusters, I. C. 2007. Evaluation of SARS- Coronavirus decontamination procedures. Appl. Biosaf. 12(2): 100-108.

  • Van Doremalen, N., Bushmaker, T., Morris, D., Holbrook, M., Gamble, A., Williamson, B., Tamin, A., Harcourt, J.L., Thornburg, N.J., Gerber, S.I., Lloyd-Smith, J., de Wit, E, Munster, V.J. 2020. Aerosol and surface stability of SARS- CoV-2 as compared with SARS-CoV-1. New Eng. J. Med. DOI: 10.1056/NEJMc2004973.

  • Wolff M.H., Sattar S.A., Adegbunrin O., Tetro J. (2005) Environmental survival and microbicide inactivation of coronaviruses. In: Schmidt A., Weber O., Wolff M.H. (eds) Coronaviruses with Special Emphasis on First Insights Concerning SARS. Birkhäuser Advances in Infectious Diseases BAID. Birkhäuser Basel. https://doi.org/10.1007/3- 7643-7339-3_10

  • Becker, B., Brill, F.H.H., Todt, D. et al. Virucidal efficacy of peracetic acid for instrument disinfection. Antimicrob Resist Infect Control 6, 114 (2017). https://doi.org/10.1186/s13756-017-0271-3

  • Darnell ME, Taylor DR. Evaluation of inactivation methods for severe acute respiratory syndrome coronavirus in noncellular blood products. Transfusion 2006 Oct;46(10):1770-7. https://doi.org/10.1111/j.1537-2995.2006.00976.x

  • Rabenau, Holger & Kampf, Günter & Cinatl, Jindrich & Doerr, Hans Wilhelm. (2005). Efficacy of various disinfectants against SARS coronavirus. The Journal of hospital infection. 61. 107-11. 10.1016/j.jhin.2004.12.023.

  • Saknimit M, Inatsuki I, Sugiyama Y, Yagami K. Virucidal efficacy of physico-chemical treatments against coronaviruses and parvoviruses of laboratory animals. Jikken Dobutsu. 1988;37:341-5.

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For more than 10 years, Sinatech’s commitment to the winemaker has been working side by side to provide the most appropriate analytical solutions to the control and monitoring of the winemaking process. Automated methods easily adaptable to any work routine, with a personalized advisory team to help you quickly and smoothly implement.

Sinatech: TeamWork.

DIONYSOS: AT YOUR FINGERTIP

DIONYSOS 240 from SINATECH
DIONYSOS System

The new automatic systems of enological enzymatic analysis have arrived.

Equipped with the latest and most innovative technologies, the Dionysos system represents the evolution of enzymatic analyzers in the oenological sector. Two alternatives that differ in analytical speed but not in performance or characteristics.

DIONYSOS 240 from SINATECH

Both Dionysos 150, (constant speed of 100 tests/hour in bi-reactive mode) and Dionysos 240 (constant speed of 160 tests/hour in bi-reactive mode), have 40 positions for reagents (maximum capacity of 20 bi-reagent methods simultaneous), 40 positions for samples, constant cooling of samples and reagents, semi-permanent cuvettes, 6-step washing station, ceramic diluent, brushless membrane pumps. In addition, both models incorporate a specific reaction mixing arm, which guarantees the perfect homogeneity of the reaction even with high density samples such as must, ensuring high precision even in the most critical conditions, as well as a highly effective dilution system, capable of achieving high dilutions (1/100 and higher) with an exceptional level of precision and repeatability.

Do you still use 20 years ago technology in your lab?

DIONYSOS 150 from SINATECH

The fully sealed diode array optical system, nanomaterials, collimated tungsten halogen lamp or degassing module are just some examples of the high technology used by Dionysos, but the real revolution is represented by the instrument software: simple, elegant and intuitive. The software allows you to control every aspect of the analysis, from reagents to the final result, simply with the touch of a finger. The touchscreen interface facilitates the continuous loading of samples, without waiting or blocking: it is enough to indicate what tests you want to perform on the sample and place it on the instrument.

The powerful database, designed for the winemaker, allows customizable printed reports, statistical analysis of results based on the characteristics of the sample, search through multiple criteria in the stored results. Similarly, it is possible to access all the information necessary for your daily work with a simple click: information on reagents, calibrations, quality control, instrument status and much more.

Dionysos systems are complemented by a line of dedicated reagents developed specifically for instruments, which provide the guarantee of adequate, accurate and accurate results that will allow you to make important decisions with confidence.

Dionysos: all the power of a state-of-the-art analyzer at your fingertip.

DIONYSOS 240 from SINATECH

DIONYSOS 240

DIONYSOS 150 from SINATECH

DIONYSOS 150

For more than 10 years, Sinatech’s commitment to the winemaker has been working side by side to provide the most appropriate analytical solutions to the control and monitoring of the winemaking process. Automated methods easily adaptable to any work routine, with a personalized advisory team to help you quickly and smoothly implement.

Sinatech: TeamWork.

MEET US AT SIMEI ‘19 HALL 11 STAND S02

SIMEI 2019
SIMEI Italy

RENEWED EXPERIENCE

Sinatech will be present at SIMEI 2019 to introduce the most advanced UV/Visible wine analysis system in the world.

For over 10 years Sinatech‘s commitment has been to work side by side with the oenologist to improve the quality of laboratory analyzes even further.

From our experience and the suggestions received, the new system of oenological analysis of the latest generation is born.

Come and discover it at our stand S02 in hall 11.

We are waiting for you!

Sinatech: TEAMWORK