A method of bonding together surfaces of two or more elements, said method comprising the steps of: - providing two or more elements, - applying an adhesive to one or more of the surfaces to be bonded together and then contacting the surfaces to be bonded together with each other, - curing the adhesive, wherein the adhesive comprises at least one hydrocolloid, wherein the adhesive comprises ∘ proteins from animal sources, including collagen, gelatine and hydrolysed gelatine, and the adhesive further comprises at least one tannin selected from one or more components from the group consisting of tannic acid, condensed tannins (proanthocyanidins), hydrolysable tannins, gallotannins, ellagitannins, complex tannins, and/or tannin originating from one or more of oak, chestnut, staghorn sumac and fringe cups, and/or ∘ proteins from animal sources, including collagen, gelatine and hydrolysed gelatine, and wherein the adhesive further comprises at least one enzyme selected from the group consisting of transglutaminase (EC 2.3.2.13), protein disulfide isomerase (EC 5.3.4.1), thiol oxidase (EC 1.8.3.2), polyphenol oxidase (EC 1.14.18.1), in particular catechol oxidase, tyrosine oxidase, and phenoloxidase, lysyl oxidase (EC 1.4.3.13), and peroxidase (EC 1.11.1.7), wherein the step of curing is carried out at temperatures from 5 to 95°C, such as 10 to 80°C, such as 20 to 60°C, such as 40 to 50°C, and wherein the step of curing comprises a drying process, involving blowing air or gas over the elements. - providing two or more elements, - applying an adhesive to one or more of the surfaces to be bonded together and then contacting the surfaces to be bonded together with each other, - curing the adhesive, wherein the adhesive comprises at least one hydrocolloid, wherein the adhesive comprises ∘ proteins from animal sources, including collagen, gelatine and hydrolysed gelatine, and the adhesive further comprises at least one tannin selected from one or more components from the group consisting of tannic acid, condensed tannins (proanthocyanidins), hydrolysable tannins, gallotannins, ellagitannins, complex tannins, and/or tannin originating from one or more of oak, chestnut, staghorn sumac and fringe cups, and/or ∘ proteins from animal sources, including collagen, gelatine and hydrolysed gelatine, and wherein the adhesive further comprises at least one enzyme selected from the group consisting of transglutaminase (EC 2.3.2.13), protein disulfide isomerase (EC 5.3.4.1), thiol oxidase (EC 1.8.3.2), polyphenol oxidase (EC 1.14.18.1), in particular catechol oxidase, tyrosine oxidase, and phenoloxidase, lysyl oxidase (EC 1.4.3.13), and peroxidase (EC 1.11.1.7), wherein the step of curing is carried out at temperatures from 5 to 95°C, such as 10 to 80°C, such as 20 to 60°C, such as 40 to 50°C, and wherein the step of curing comprises a drying process, involving blowing air or gas over the elements. ∘ proteins from animal sources, including collagen, gelatine and hydrolysed gelatine, and the adhesive further comprises at least one tannin selected from one or more components from the group consisting of tannic acid, condensed tannins (proanthocyanidins), hydrolysable tannins, gallotannins, ellagitannins, complex tannins, and/or tannin originating from one or more of oak, chestnut, staghorn sumac and fringe cups, and/or ∘ proteins from animal sources, including collagen, gelatine and hydrolysed gelatine, and wherein the adhesive further comprises at least one enzyme selected from the group consisting of transglutaminase (EC 2.3.2.13), protein disulfide isomerase (EC 5.3.4.1), thiol oxidase (EC 1.8.3.2), polyphenol oxidase (EC 1.14.18.1), in particular catechol oxidase, tyrosine oxidase, and phenoloxidase, lysyl oxidase (EC 1.4.3.13), and peroxidase (EC 1.11.1.7),