Microparticles containing stabilized CBD oil, and methods for the production thereof
Food, beverage and nutritional supplements containing microparticles containing stabilised CBD oil, and methods for the production thereof” Food, beverage and nutritional supplements that containing microparticles are described. The microparticles contain CBD oil stabilized in an acacia or inulin fibre or cyclodextrin matrix. Methods for the production of the compositions comprise making the microparticles by providing an oil-in-water microemulsion comprising CBD oil, water, acacia/inulin fibre and optionally maltodextrin or cyclodextrin, and freeze-drying the microemulsion to remove water and provide a preparation of dried microparticles. The dried microparticles comprise a dispersed phase of stabilized microdroplets of CBD oil disposed in a continuous solid matrix comprising acacia or inulin fibre. The preparation of microcapsules contains less than 10% free CBD oil and exhibit improved pharmacokinetics and bioavailability of CD.
1 . A method of making a food, beverage or nutritional supplement composition comprising a preparation of gastro-resistant, ileal-sensitive, microparticles, the method comprising the steps of:
providing an oil-in-water microemulsion comprising an aqueous phase and a solid phase comprising CBD oil and acacia or inulin fibre;
freeze-drying the microemulsion to provide a solid cake; and
size-reducing the cake to provide the preparation of gastro-resistant, ileal-sensitive microparticles,
wherein:
the microparticles comprise a dispersed phase of stabilized microdroplets of CBD oil disposed in a continuous solid matrix comprising acacia or inulin fibre;
the preparation of microcapsules contains less than 10% free CBD oil; and
the oil-in-water microemulsion is formed by a process comprising the steps of:
(a) combining water with acacia or inulin fibre and allowing the acacia or inulin fibre to hydrate;
(b) homogenizing the hydrated fibre;
(c) adding the CBD oil to the homogenized hydrated fibre to form a mixture;
(d) homogenizing the mixture;
(e) allowing the homogenized mixture to rest for a resting time of at least 5 minutes; and
(f) repeating steps (d) and (e) in sequence.
2 . A method according to claim 1 , in which the solid phase comprises 2-15% maltodextrin (w/v).
3 . A method according to claim 1 , in which the solid phase comprises cyclodextrin, and in which a weight ratio of acacia or inulin fibre to cyclodextrin is at least 2:1.
4 . A method according to claim 1 , in which the microemulsion comprises 10-70% of the solid phase and 30-90% of the aqueous phase (w/w).
5 . A method according to claim 1 , in which the microemulsion comprises 20-30% of the solid phase and 70-80% of the aqueous phase (w/w).
6 . A method according to claim 1 in which the solid phase comprises 25-70% by weight CBD oil.
7 . A method according to claim 1 in which the solid phase comprises 25-70% by weight CBD oil, maltodextrin and/or cyclodextrin.
8 . A method according to claim 1 , including repeating steps (d) and (e) in sequence at least two times.
9 . A method according to claim 1 , in which a homogenisation pressure during the rounds of homogenization/resting is alternated between a low pressure of 30-70 Pa and a high pressure of 130-170 Pa.
10 . A food, beverage or nutritional supplement composition comprising a powder, in which the powder comprises freeze dried microparticles and less than 10% free CBD oil, in which the freeze dried microparticles comprise CBD oil and acacia or inulin fibre in which the CBD oil is provided as stabilized CBD oil microdroplets distributed throughout a continuous solid matrix comprising acacia or inulin fibre.
11 . A food, beverage or nutritional supplement composition according to claim 10 , in which the continuous solid matrix comprises an oligosaccharide filler selected from cyclodextrin and maltodextrin in which a weight ratio of fibre to oligosaccharide filler is at least 2:1.
12 . A food, beverage or nutritional supplement composition according to claim 10 , in which the microparticles have an average dimension of 150-500 microns.
13 . A food, beverage or nutritional supplement composition according to claim 10 , in which the microparticles have an average dimension of 150-500 microns and in which the powder contains 3-12% stabilized CBD oil.
14 . A food, beverage or nutritional supplement composition according to claim 10 , in which a weight ratio of fibre to oligosaccharide filler is at least 3:1.
15 . A food, beverage or nutritional supplement composition according to claim 10 , comprising 2-15% maltodextrin by weight.
16 . A food, beverage or nutritional supplement composition according to claim 10 , consisting essentially of CBD oil, acacia or inulin fibre, an oligosaccharide filler, less than 10% free CBD oil, and less than 5% moisture.
17 . A food, beverage or nutritional supplement composition according to claim 10 , having less than 7% free CBD oil.
18 . A food, beverage or nutritional supplement composition according to claim 10 that is an aqueous beverage comprising 1-20% by weight of the powder, in which the continuous solid matrix of the microparticles comprises maltodextrin.
19 . A food, beverage or nutritional supplement composition according to claim 10 , in which the composition is a gummie.