The physicochemical and binder properties of starch from <i>Persea americana</i> Miller (Lauraceae)

Builders, Philip F.; Nnurum, Abigail; Mbah, Chukwuemeka C.; Attama, Anthony A.; Manek, Rahul V.

doi:10.1002/star.200900222

Cited by 47 publications

(53 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to the literature [9], when native avocado starch is extracted and subsequently washed without further processing it has a light brown colour. This characteristic of starch was found in the present study.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The effects of heat-moisture treatment on avocado starch granules

Lacerda

Filho

Bauab

et al. 2014

J Therm Anal Calorim

View full text Add to dashboard Cite

The avocado (Persea americana, Miller) is a very popular tree worldwide. It is native to Central/North America (Mexico) and its fruit is healthy and is consumed in large quantities worldwide. Several studies revealed that a diet enriched with avocado fruit lowers total cholesterol and low-density lipoproteins levels without changing high density lipoprotein levels. The seeds of the avocado constitute a high percentage of the fruit's mass and they are often discarded as industrial waste. These seeds contain an important amount of starch and there is lack of study regarding the physicochemical properties of this biopolymer. Heat-moisture treatment (HMT) of starch is a physical method considered to be natural; it consists of heating starch at a temperature above its gelatinisation point, with insufficient moisture (\35 %) to cause gelatinisation. Stoichiometrically distilled water (up to 10, 20 and 30 %, w/w) was added to untreated samples of avocado starch (moisture around 9 %) and then each sample was homogenised and sealed into 100 mL pressure flasks, sealed tightly with a cap and maintained in an autoclave at 120°C for 60 min. After this time, each sample was investigated using the following techniques: simultaneous thermogravimetry-differential thermal analysis; differential scanning calorimetry; non-contact atomic force microscopy; rapid viscoamylographic analysis; atomic force microscopy; and X-ray powder pattern diffractometry.

show abstract

Section: Methodsmentioning

confidence: 99%

“…This relatively high content of starch in the seeds has led to studies of some of their properties, as well as the evaluation of this compound, which has the potential to be used as an alternative to maize starch in pharmaceutical applications [9].…”

Section: Introductionmentioning

confidence: 99%

The effects of heat-moisture treatment on avocado starch granules

Lacerda

Filho

Bauab

et al. 2014

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

“…Builders et al . isolated starch from avocado by soaking seeds chopped in a 0.075% w/v sodium metabisulfite solution for 24 h followed by wash, filtration, stand for 12 h for starch granule sedimentation, decantation of the supernatant, and air‐drying.…”

Section: Sources Of Starch From Fruit Wastesmentioning

confidence: 99%

Fruit Wastes as Promising Sources of Starch: Extraction, Properties, and Applications

et al. 2020

View full text Add to dashboard Cite

Fruits are widely consumed and play a crucial role in diet. Furthermore, changes in dietary habits and growing world population have promoted the increase in demand of this product, which consequently increase their wastes. Besides, the fruit processing, including juice processing, pulp extraction, jams, and frozen pulp, also generates significant amounts of waste. Wastes include skin, pulp, seed waste, and pomace, which are rich in value‐added compounds like starch. The search for new starch sources has been motivated by three main reasons: growing market demand; industry demand for new starches with different physicochemical, structural, and functional properties than conventional starch sources; and food supply to meet the increase of world population. The principal conventional sources of starch are cereal and tubers. However, fruit wastes can contain significant amounts of starch that can be better explored. Fruit waste starches have unique features and can expand the possible range of starch uses in industry. This review explores fruit wastes, including kiwifruit, pineapple, mango, litchi, tamarind, longan, loquat, annatto, jackfruit, avocado, apple, and banana as new sources of starch, and also discusses their extraction methods, properties, and potential uses.

show abstract

“…The angle of repose and Carr's compressibility index of AM-1 were 47±4° and 21±3% respectively. Thus, the various granulations and their different sifted components all had very good flow properties as compared to that of the unformulated AM-1 Builders et al, 2010). This could be due to a number of factors which includes: a near spherical shape of the granules, the presence of fines in the multipartculate structure of the granulations which could improve the flow of granules by filling voids especially between the large particles thereby decreasing surface roughness.The poor flow of the unformulated AM-1 could be attributed to factors which may include: stickiness of the powder on exposure to atmospheric air, rough surface structure and a uniform particle size of the fine powder ( 150 µm).…”

Section: Granule Flow Propertymentioning

confidence: 95%

Some critical effects of starch gel on the granule and tablet properties of a potent herbal extract AM-1

Builders¹

2011

Afr. J. Pharm. Pharmacol.

View full text Add to dashboard Cite

The ability to convert potent herbal medicines into robust tablet will require a good understanding of certain critical factors such as effect of binder concentration on granule particles and tablets properties. In this study, granules of AM-1, a prototype herbal extract has been produced by the wet granulation process of massing and screening using different concentrations of maize starch gel as binder. The effect of the binder concentrations and granule particles' size on the granules' flow and moisture uptake characteristics as well as, their effect on the friability and tensile strength of tablets produced with the granules were investigated. The AM-1 granules prepared with the different concentrations of maize starch gel as binder were of variable particulate dimensions. The particle size and size distribution of the granules showed a remarkable binder concentration sensitivity with a shift to larger particles with increasing binder concentrations. The flow of the granules as determined by evaluating their angle of repose and Carr compressibility indices showed enhanced flow relative to the unformulated AM-1. At simulated tropical humidity and temperature conditions, the AM-1 granules exhibited binder concentration sensitivity to moisture uptake. There was also a reduction in the moisture uptake ability of the granulated AM-1 relative to the ungranulated sample. The tensile strength and friability of the AM-1 tablets showed binder concentration and granule particle size sensitivity: the duo increased with increase in binder concentrations as swell as particle size. This study has shown the effects of granulation as well as starch gel concentration on some critical formulation properties of an herbal extract AM-1, obtained by freeze drying the aqueous decoction of a powdered root material.

show abstract

The physicochemical and binder properties of starch from Persea americana Miller (Lauraceae)

Cited by 47 publications

References 34 publications

The effects of heat-moisture treatment on avocado starch granules

The effects of heat-moisture treatment on avocado starch granules

Fruit Wastes as Promising Sources of Starch: Extraction, Properties, and Applications

Some critical effects of starch gel on the granule and tablet properties of a potent herbal extract AM-1

Contact Info

Product

Resources

About