Cellulose acetate as a selective sorbent for limonin in orange juice

Abstract

Cellulose acetate as flake or powder is an efficient and selective sorbent for removing the bitter principle limonin from orange juice. Treatment of orange juice serum with powder (10 g,'litre) removed 4 4 7 0 % of the limonin content in less than an hour, at the same time removing relatively negligible amounts of hesperidin and ascorbic acid. Similar amounts of limonin could be removed by agitating the whole juice with cellulose acetate flakes held in open mesh bags which allowed contact between the enclosed flakes and the juice. Other materials, including related carbohydrate derivatives and polymers, were tested but only cellulose acetate butyrate shared the unusual sorptive properties of cellulose acetate.

Treatment of grape juice or must with silicone reduces 3-alkyl-2-methoxypyrazine concentrations in resulting wines without altering fermentation volatiles

“…However, the tubing has relatively thick walls (4.7 mm) and low surface area, which should result in poor mass transfer properties. By comparison, debittering of orange juice using cellulose acetate particles of much smaller dimensions (0.075-0.210 mm) than silicone resulted in a 50% reduction of limonene within 10 min (Chandler & Johnson, 1977) or a factor of 48-72 times faster than the time necessary to reduce MPs by 50% in our study. For commercial applications, improved geometries of silicone (smaller particle size, greater surface area) should result in increased extraction rates.…”

Flavor and Color of Fruits as Affected by Processing

“…Each of these methods have their drawbacks and none are used appreciably in the industry. Absorption of limonoids on various support systems, such as cellulose acetate (Chandler and Johnson 1977) or its gel-bead form (Johnson and Chandler 1981) shows some promise. Earlier polyamide supports were unacceptable because they removed ascorbic acid as well as limon in (Kealy and Kinsella 1979).…”

Adsorption of naringin on nonionic (neutral) macroporus adsorbent resin from its aqueous solutions

“…Polystyrene divinyl benzene resins (Chandler and Johnson, 1977;Johnson and Chandler, 1982;Puri, 1984;Mitchell and Pearce, 1985;Chandler, 1985, 1988;Inoue and Sakamoto, 1993;Premi et al, 1995;Francesco, 1994). A mixture of acryl divinyl benzene resins and polystyrene divinyl benzene adsorbent resins (Ifuku et al, 1988).…”

“…Activated carbon (McColloch, 1950), activated flurosil (Barmore et al, 1986;Chaisawadi et al, 1998), lignin type adsorbent derived from Carob seeds (Magnoloto, 1981), polyamides (Chandler et al, 1968), polyvinylpyrollidone (Maeda et al, 1979;Nisperos and Robertson, 1982), nylon polymers (Chandler et al, 1968;Johnson and Chandler, 1982) b-cyclodextrin polymers (Shaw and Wilson, 1983;Shaw and Buslig, 1986;Wilson et al, 1989;Shaw, 1990 a ), a-cyclodextrin polymers (Shaw et al, 1984;Shaw and Wilson, 1985) cellulose acetate (Chandler and Johnson, 1977;Johnson and Chandler, 1981;Chenghong Peng, 1990), cellulose acetate derivatives like Cellulose acetate butyrate (Chandler and Johnson, 1977), cellulose triacetate (Tsen and Yu, 1991) cellulose ester in gel form (Chandler and Johnson, 1979).…”